Home / 9,130.48-12,600.15-5,355.88

Finding the Fourth Proportional to 9,130.48, 12,600.15 and 5,355.88

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Solution

The fourth proportional to 9,130.48, 12,600.15 and 5,355.88 is: 7,391.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.48 : 12,600.15 = 5,355.88 : x
  2. Step 2: Convert to fraction form
    9,130.48/12,600.15 = 5,355.88/x
  3. Step 3: Cross multiply
    9,130.48x = 12,600.15 × 5,355.88
  4. Step 4: Simplify right side
    9,130.48x = 67,484,891.38
  5. Step 5: Solve for x
    x = 67,484,891.38/9,130.48
  6. Step 6: Final answer
    x = 7,391.17

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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.