Home / 15,447.90-23,139.45-8,514.30

Finding the Fourth Proportional to 15,447.90, 23,139.45 and 8,514.30

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Solution

The fourth proportional to 15,447.90, 23,139.45 and 8,514.30 is: 12,753.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.90 : 23,139.45 = 8,514.30 : x
  2. Step 2: Convert to fraction form
    15,447.90/23,139.45 = 8,514.30/x
  3. Step 3: Cross multiply
    15,447.90x = 23,139.45 × 8,514.30
  4. Step 4: Simplify right side
    15,447.90x = 197,016,219.14
  5. Step 5: Solve for x
    x = 197,016,219.14/15,447.90
  6. Step 6: Final answer
    x = 12,753.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.