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Finding the Fourth Proportional to 14,008.11, 21,018.27 and 7,432.65

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Solution

The fourth proportional to 14,008.11, 21,018.27 and 7,432.65 is: 11,152.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.11 : 21,018.27 = 7,432.65 : x
  2. Step 2: Convert to fraction form
    14,008.11/21,018.27 = 7,432.65/x
  3. Step 3: Cross multiply
    14,008.11x = 21,018.27 × 7,432.65
  4. Step 4: Simplify right side
    14,008.11x = 156,221,444.52
  5. Step 5: Solve for x
    x = 156,221,444.52/14,008.11
  6. Step 6: Final answer
    x = 11,152.21

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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.