Home / 11,117.30-15,339.74-6,337.15

Finding the Fourth Proportional to 11,117.30, 15,339.74 and 6,337.15

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Solution

The fourth proportional to 11,117.30, 15,339.74 and 6,337.15 is: 8,744.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.30 : 15,339.74 = 6,337.15 : x
  2. Step 2: Convert to fraction form
    11,117.30/15,339.74 = 6,337.15/x
  3. Step 3: Cross multiply
    11,117.30x = 15,339.74 × 6,337.15
  4. Step 4: Simplify right side
    11,117.30x = 97,210,163.31
  5. Step 5: Solve for x
    x = 97,210,163.31/11,117.30
  6. Step 6: Final answer
    x = 8,744.05

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Half scale
Find fourth proportional to 22,234.59, 30,679.47 and 12,674.30
Double scale
Find fourth proportional to 11,118.30, 15,341.11 and 6,338.15
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.