Home / 15,512.88-21,408.66-10,487.10

Finding the Fourth Proportional to 15,512.88, 21,408.66 and 10,487.10

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Solution

The fourth proportional to 15,512.88, 21,408.66 and 10,487.10 is: 14,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.88 : 21,408.66 = 10,487.10 : x
  2. Step 2: Convert to fraction form
    15,512.88/21,408.66 = 10,487.10/x
  3. Step 3: Cross multiply
    15,512.88x = 21,408.66 × 10,487.10
  4. Step 4: Simplify right side
    15,512.88x = 224,514,758.29
  5. Step 5: Solve for x
    x = 224,514,758.29/15,512.88
  6. Step 6: Final answer
    x = 14,472.80

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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.