Home / 10,878.22-15,011.49-6,162.76

Finding the Fourth Proportional to 10,878.22, 15,011.49 and 6,162.76

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Solution

The fourth proportional to 10,878.22, 15,011.49 and 6,162.76 is: 8,504.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.22 : 15,011.49 = 6,162.76 : x
  2. Step 2: Convert to fraction form
    10,878.22/15,011.49 = 6,162.76/x
  3. Step 3: Cross multiply
    10,878.22x = 15,011.49 × 6,162.76
  4. Step 4: Simplify right side
    10,878.22x = 92,512,210.11
  5. Step 5: Solve for x
    x = 92,512,210.11/10,878.22
  6. Step 6: Final answer
    x = 8,504.35

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Half scale
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Double scale
Find fourth proportional to 10,879.22, 15,012.87 and 6,163.76
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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.