Home / 15,549.92-21,458.11-8,834.66

Finding the Fourth Proportional to 15,549.92, 21,458.11 and 8,834.66

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Solution

The fourth proportional to 15,549.92, 21,458.11 and 8,834.66 is: 12,191.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.92 : 21,458.11 = 8,834.66 : x
  2. Step 2: Convert to fraction form
    15,549.92/21,458.11 = 8,834.66/x
  3. Step 3: Cross multiply
    15,549.92x = 21,458.11 × 8,834.66
  4. Step 4: Simplify right side
    15,549.92x = 189,574,976.72
  5. Step 5: Solve for x
    x = 189,574,976.72/15,549.92
  6. Step 6: Final answer
    x = 12,191.38

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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.