Home / 15,250.91-21,047.19-8,536.96

Finding the Fourth Proportional to 15,250.91, 21,047.19 and 8,536.96

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Solution

The fourth proportional to 15,250.91, 21,047.19 and 8,536.96 is: 11,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,250.91 : 21,047.19 = 8,536.96 : x
  2. Step 2: Convert to fraction form
    15,250.91/21,047.19 = 8,536.96/x
  3. Step 3: Cross multiply
    15,250.91x = 21,047.19 × 8,536.96
  4. Step 4: Simplify right side
    15,250.91x = 179,678,913.91
  5. Step 5: Solve for x
    x = 179,678,913.91/15,250.91
  6. Step 6: Final answer
    x = 11,781.52

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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.