Home / 15,251.52-21,045.60-8,965.44

Finding the Fourth Proportional to 15,251.52, 21,045.60 and 8,965.44

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Solution

The fourth proportional to 15,251.52, 21,045.60 and 8,965.44 is: 12,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.52 : 21,045.60 = 8,965.44 : x
  2. Step 2: Convert to fraction form
    15,251.52/21,045.60 = 8,965.44/x
  3. Step 3: Cross multiply
    15,251.52x = 21,045.60 × 8,965.44
  4. Step 4: Simplify right side
    15,251.52x = 188,683,064.06
  5. Step 5: Solve for x
    x = 188,683,064.06/15,251.52
  6. Step 6: Final answer
    x = 12,371.43

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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.