Home / 12,561.24-17,330.96-8,087.58

Finding the Fourth Proportional to 12,561.24, 17,330.96 and 8,087.58

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Solution

The fourth proportional to 12,561.24, 17,330.96 and 8,087.58 is: 11,158.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.24 : 17,330.96 = 8,087.58 : x
  2. Step 2: Convert to fraction form
    12,561.24/17,330.96 = 8,087.58/x
  3. Step 3: Cross multiply
    12,561.24x = 17,330.96 × 8,087.58
  4. Step 4: Simplify right side
    12,561.24x = 140,165,545.70
  5. Step 5: Solve for x
    x = 140,165,545.70/12,561.24
  6. Step 6: Final answer
    x = 11,158.58

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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.