Home / 15,934.30-21,989.87-8,764.52

Finding the Fourth Proportional to 15,934.30, 21,989.87 and 8,764.52

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Solution

The fourth proportional to 15,934.30, 21,989.87 and 8,764.52 is: 12,095.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,934.30 : 21,989.87 = 8,764.52 : x
  2. Step 2: Convert to fraction form
    15,934.30/21,989.87 = 8,764.52/x
  3. Step 3: Cross multiply
    15,934.30x = 21,989.87 × 8,764.52
  4. Step 4: Simplify right side
    15,934.30x = 192,730,501.64
  5. Step 5: Solve for x
    x = 192,730,501.64/15,934.30
  6. Step 6: Final answer
    x = 12,095.33

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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.