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Finding the Fourth Proportional to 14,672, 22,008.18 and 5,438

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Solution

The fourth proportional to 14,672, 22,008.18 and 5,438 is: 8,157.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,672 : 22,008.18 = 5,438 : x
  2. Step 2: Convert to fraction form
    14,672/22,008.18 = 5,438/x
  3. Step 3: Cross multiply
    14,672x = 22,008.18 × 5,438
  4. Step 4: Simplify right side
    14,672x = 119,680,482.84
  5. Step 5: Solve for x
    x = 119,680,482.84/14,672
  6. Step 6: Final answer
    x = 8,157.07

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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.