Home / 15,054.46-20,775.30-8,340.18

Finding the Fourth Proportional to 15,054.46, 20,775.30 and 8,340.18

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Solution

The fourth proportional to 15,054.46, 20,775.30 and 8,340.18 is: 11,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.46 : 20,775.30 = 8,340.18 : x
  2. Step 2: Convert to fraction form
    15,054.46/20,775.30 = 8,340.18/x
  3. Step 3: Cross multiply
    15,054.46x = 20,775.30 × 8,340.18
  4. Step 4: Simplify right side
    15,054.46x = 173,269,741.55
  5. Step 5: Solve for x
    x = 173,269,741.55/15,054.46
  6. Step 6: Final answer
    x = 11,509.53

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Half scale
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Double scale
Find fourth proportional to 15,055.46, 20,776.68 and 8,341.18
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.