Home / 12,952.11-17,876.85-9,171.30

Finding the Fourth Proportional to 12,952.11, 17,876.85 and 9,171.30

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Solution

The fourth proportional to 12,952.11, 17,876.85 and 9,171.30 is: 12,658.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,952.11 : 17,876.85 = 9,171.30 : x
  2. Step 2: Convert to fraction form
    12,952.11/17,876.85 = 9,171.30/x
  3. Step 3: Cross multiply
    12,952.11x = 17,876.85 × 9,171.30
  4. Step 4: Simplify right side
    12,952.11x = 163,953,954.41
  5. Step 5: Solve for x
    x = 163,953,954.41/12,952.11
  6. Step 6: Final answer
    x = 12,658.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.