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Finding the Fourth Proportional to 8,981.71, 13,502.97 and 7,238.94

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Solution

The fourth proportional to 8,981.71, 13,502.97 and 7,238.94 is: 10,882.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.71 : 13,502.97 = 7,238.94 : x
  2. Step 2: Convert to fraction form
    8,981.71/13,502.97 = 7,238.94/x
  3. Step 3: Cross multiply
    8,981.71x = 13,502.97 × 7,238.94
  4. Step 4: Simplify right side
    8,981.71x = 97,747,189.65
  5. Step 5: Solve for x
    x = 97,747,189.65/8,981.71
  6. Step 6: Final answer
    x = 10,882.92

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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.