Home / 15,530.27-21,432.36-8,816.18

Finding the Fourth Proportional to 15,530.27, 21,432.36 and 8,816.18

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Solution

The fourth proportional to 15,530.27, 21,432.36 and 8,816.18 is: 12,166.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,530.27 : 21,432.36 = 8,816.18 : x
  2. Step 2: Convert to fraction form
    15,530.27/21,432.36 = 8,816.18/x
  3. Step 3: Cross multiply
    15,530.27x = 21,432.36 × 8,816.18
  4. Step 4: Simplify right side
    15,530.27x = 188,951,543.58
  5. Step 5: Solve for x
    x = 188,951,543.58/15,530.27
  6. Step 6: Final answer
    x = 12,166.66

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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.