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Finding the Fourth Proportional to 9,329.04, 13,978.89 and 8,532.81

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Solution

The fourth proportional to 9,329.04, 13,978.89 and 8,532.81 is: 12,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.04 : 13,978.89 = 8,532.81 : x
  2. Step 2: Convert to fraction form
    9,329.04/13,978.89 = 8,532.81/x
  3. Step 3: Cross multiply
    9,329.04x = 13,978.89 × 8,532.81
  4. Step 4: Simplify right side
    9,329.04x = 119,279,212.38
  5. Step 5: Solve for x
    x = 119,279,212.38/9,329.04
  6. Step 6: Final answer
    x = 12,785.80

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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.