Home / 14,254.65-21,385.62-5,487.21

Finding the Fourth Proportional to 14,254.65, 21,385.62 and 5,487.21

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Solution

The fourth proportional to 14,254.65, 21,385.62 and 5,487.21 is: 8,232.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,254.65 : 21,385.62 = 5,487.21 : x
  2. Step 2: Convert to fraction form
    14,254.65/21,385.62 = 5,487.21/x
  3. Step 3: Cross multiply
    14,254.65x = 21,385.62 × 5,487.21
  4. Step 4: Simplify right side
    14,254.65x = 117,347,387.92
  5. Step 5: Solve for x
    x = 117,347,387.92/14,254.65
  6. Step 6: Final answer
    x = 8,232.22

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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.