Home / 15,327.86-21,150.26-8,613.17

Finding the Fourth Proportional to 15,327.86, 21,150.26 and 8,613.17

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Solution

The fourth proportional to 15,327.86, 21,150.26 and 8,613.17 is: 11,884.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.86 : 21,150.26 = 8,613.17 : x
  2. Step 2: Convert to fraction form
    15,327.86/21,150.26 = 8,613.17/x
  3. Step 3: Cross multiply
    15,327.86x = 21,150.26 × 8,613.17
  4. Step 4: Simplify right side
    15,327.86x = 182,170,679.17
  5. Step 5: Solve for x
    x = 182,170,679.17/15,327.86
  6. Step 6: Final answer
    x = 11,884.94

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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.