Home / 15,577.15-21,498.53-8,861.48

Finding the Fourth Proportional to 15,577.15, 21,498.53 and 8,861.48

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Solution

The fourth proportional to 15,577.15, 21,498.53 and 8,861.48 is: 12,230.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,577.15 : 21,498.53 = 8,861.48 : x
  2. Step 2: Convert to fraction form
    15,577.15/21,498.53 = 8,861.48/x
  3. Step 3: Cross multiply
    15,577.15x = 21,498.53 × 8,861.48
  4. Step 4: Simplify right side
    15,577.15x = 190,508,793.62
  5. Step 5: Solve for x
    x = 190,508,793.62/15,577.15
  6. Step 6: Final answer
    x = 12,230.02

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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.