Home / 8,610.24-12,915.28-3,675.68

Finding the Fourth Proportional to 8,610.24, 12,915.28 and 3,675.68

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Solution

The fourth proportional to 8,610.24, 12,915.28 and 3,675.68 is: 5,513.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.24 : 12,915.28 = 3,675.68 : x
  2. Step 2: Convert to fraction form
    8,610.24/12,915.28 = 3,675.68/x
  3. Step 3: Cross multiply
    8,610.24x = 12,915.28 × 3,675.68
  4. Step 4: Simplify right side
    8,610.24x = 47,472,436.39
  5. Step 5: Solve for x
    x = 47,472,436.39/8,610.24
  6. Step 6: Final answer
    x = 5,513.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.