Home / 15,999.50-22,079.31-8,925.92

Finding the Fourth Proportional to 15,999.50, 22,079.31 and 8,925.92

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Solution

The fourth proportional to 15,999.50, 22,079.31 and 8,925.92 is: 12,317.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.50 : 22,079.31 = 8,925.92 : x
  2. Step 2: Convert to fraction form
    15,999.50/22,079.31 = 8,925.92/x
  3. Step 3: Cross multiply
    15,999.50x = 22,079.31 × 8,925.92
  4. Step 4: Simplify right side
    15,999.50x = 197,078,154.72
  5. Step 5: Solve for x
    x = 197,078,154.72/15,999.50
  6. Step 6: Final answer
    x = 12,317.77

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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.