Home / 8,302.88-11,472.55-6,638.04

Finding the Fourth Proportional to 8,302.88, 11,472.55 and 6,638.04

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Solution

The fourth proportional to 8,302.88, 11,472.55 and 6,638.04 is: 9,172.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,302.88 : 11,472.55 = 6,638.04 : x
  2. Step 2: Convert to fraction form
    8,302.88/11,472.55 = 6,638.04/x
  3. Step 3: Cross multiply
    8,302.88x = 11,472.55 × 6,638.04
  4. Step 4: Simplify right side
    8,302.88x = 76,155,229.21
  5. Step 5: Solve for x
    x = 76,155,229.21/8,302.88
  6. Step 6: Final answer
    x = 9,172.14

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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.