Home / 14,165.52-21,144.40-12,505.04

Finding the Fourth Proportional to 14,165.52, 21,144.40 and 12,505.04

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Solution

The fourth proportional to 14,165.52, 21,144.40 and 12,505.04 is: 18,665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,165.52 : 21,144.40 = 12,505.04 : x
  2. Step 2: Convert to fraction form
    14,165.52/21,144.40 = 12,505.04/x
  3. Step 3: Cross multiply
    14,165.52x = 21,144.40 × 12,505.04
  4. Step 4: Simplify right side
    14,165.52x = 264,411,567.78
  5. Step 5: Solve for x
    x = 264,411,567.78/14,165.52
  6. Step 6: Final answer
    x = 18,665.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.