Home / 10,011.28-15,017.04-2,989.68

Finding the Fourth Proportional to 10,011.28, 15,017.04 and 2,989.68

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Solution

The fourth proportional to 10,011.28, 15,017.04 and 2,989.68 is: 4,484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.28 : 15,017.04 = 2,989.68 : x
  2. Step 2: Convert to fraction form
    10,011.28/15,017.04 = 2,989.68/x
  3. Step 3: Cross multiply
    10,011.28x = 15,017.04 × 2,989.68
  4. Step 4: Simplify right side
    10,011.28x = 44,896,149.08
  5. Step 5: Solve for x
    x = 44,896,149.08/10,011.28
  6. Step 6: Final answer
    x = 4,484.56

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.