Home / 10,909.08-15,057.90-6,718.68

Finding the Fourth Proportional to 10,909.08, 15,057.90 and 6,718.68

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Solution

The fourth proportional to 10,909.08, 15,057.90 and 6,718.68 is: 9,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.08 : 15,057.90 = 6,718.68 : x
  2. Step 2: Convert to fraction form
    10,909.08/15,057.90 = 6,718.68/x
  3. Step 3: Cross multiply
    10,909.08x = 15,057.90 × 6,718.68
  4. Step 4: Simplify right side
    10,909.08x = 101,169,211.57
  5. Step 5: Solve for x
    x = 101,169,211.57/10,909.08
  6. Step 6: Final answer
    x = 9,273.85

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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.