Home / 11,545.08-15,932.98-6,440.92

Finding the Fourth Proportional to 11,545.08, 15,932.98 and 6,440.92

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Solution

The fourth proportional to 11,545.08, 15,932.98 and 6,440.92 is: 8,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,545.08 : 15,932.98 = 6,440.92 : x
  2. Step 2: Convert to fraction form
    11,545.08/15,932.98 = 6,440.92/x
  3. Step 3: Cross multiply
    11,545.08x = 15,932.98 × 6,440.92
  4. Step 4: Simplify right side
    11,545.08x = 102,623,049.54
  5. Step 5: Solve for x
    x = 102,623,049.54/11,545.08
  6. Step 6: Final answer
    x = 8,888.90

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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.