Home / 10,957.20-15,119.28-6,177.30

Finding the Fourth Proportional to 10,957.20, 15,119.28 and 6,177.30

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Solution

The fourth proportional to 10,957.20, 15,119.28 and 6,177.30 is: 8,523.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.20 : 15,119.28 = 6,177.30 : x
  2. Step 2: Convert to fraction form
    10,957.20/15,119.28 = 6,177.30/x
  3. Step 3: Cross multiply
    10,957.20x = 15,119.28 × 6,177.30
  4. Step 4: Simplify right side
    10,957.20x = 93,396,328.34
  5. Step 5: Solve for x
    x = 93,396,328.34/10,957.20
  6. Step 6: Final answer
    x = 8,523.74

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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.