Home / 15,239.59-21,029.78-8,523.92

Finding the Fourth Proportional to 15,239.59, 21,029.78 and 8,523.92

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Solution

The fourth proportional to 15,239.59, 21,029.78 and 8,523.92 is: 11,762.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.59 : 21,029.78 = 8,523.92 : x
  2. Step 2: Convert to fraction form
    15,239.59/21,029.78 = 8,523.92/x
  3. Step 3: Cross multiply
    15,239.59x = 21,029.78 × 8,523.92
  4. Step 4: Simplify right side
    15,239.59x = 179,256,133.91
  5. Step 5: Solve for x
    x = 179,256,133.91/15,239.59
  6. Step 6: Final answer
    x = 11,762.53

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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.