Home / 15,576.91-21,496.19-8,503.31

Finding the Fourth Proportional to 15,576.91, 21,496.19 and 8,503.31

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Solution

The fourth proportional to 15,576.91, 21,496.19 and 8,503.31 is: 11,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,576.91 : 21,496.19 = 8,503.31 : x
  2. Step 2: Convert to fraction form
    15,576.91/21,496.19 = 8,503.31/x
  3. Step 3: Cross multiply
    15,576.91x = 21,496.19 × 8,503.31
  4. Step 4: Simplify right side
    15,576.91x = 182,788,778.61
  5. Step 5: Solve for x
    x = 182,788,778.61/15,576.91
  6. Step 6: Final answer
    x = 11,734.60

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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.