Home / 12,953.12-19,385.64-9,658.04

Finding the Fourth Proportional to 12,953.12, 19,385.64 and 9,658.04

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Solution

The fourth proportional to 12,953.12, 19,385.64 and 9,658.04 is: 14,454.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.12 : 19,385.64 = 9,658.04 : x
  2. Step 2: Convert to fraction form
    12,953.12/19,385.64 = 9,658.04/x
  3. Step 3: Cross multiply
    12,953.12x = 19,385.64 × 9,658.04
  4. Step 4: Simplify right side
    12,953.12x = 187,227,286.55
  5. Step 5: Solve for x
    x = 187,227,286.55/12,953.12
  6. Step 6: Final answer
    x = 14,454.22

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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.