Home / 9,931.20-14,902.20-4,088.40

Finding the Fourth Proportional to 9,931.20, 14,902.20 and 4,088.40

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Solution

The fourth proportional to 9,931.20, 14,902.20 and 4,088.40 is: 6,134.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931.20 : 14,902.20 = 4,088.40 : x
  2. Step 2: Convert to fraction form
    9,931.20/14,902.20 = 4,088.40/x
  3. Step 3: Cross multiply
    9,931.20x = 14,902.20 × 4,088.40
  4. Step 4: Simplify right side
    9,931.20x = 60,926,154.48
  5. Step 5: Solve for x
    x = 60,926,154.48/9,931.20
  6. Step 6: Final answer
    x = 6,134.82

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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.