Home / 9,320.75-13,981.13-6,390.17

Finding the Fourth Proportional to 9,320.75, 13,981.13 and 6,390.17

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Solution

The fourth proportional to 9,320.75, 13,981.13 and 6,390.17 is: 9,585.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.75 : 13,981.13 = 6,390.17 : x
  2. Step 2: Convert to fraction form
    9,320.75/13,981.13 = 6,390.17/x
  3. Step 3: Cross multiply
    9,320.75x = 13,981.13 × 6,390.17
  4. Step 4: Simplify right side
    9,320.75x = 89,341,695.64
  5. Step 5: Solve for x
    x = 89,341,695.64/9,320.75
  6. Step 6: Final answer
    x = 9,585.25

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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.