Home / 8,829.40-13,239.82-5,132.70

Finding the Fourth Proportional to 8,829.40, 13,239.82 and 5,132.70

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Solution

The fourth proportional to 8,829.40, 13,239.82 and 5,132.70 is: 7,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,829.40 : 13,239.82 = 5,132.70 : x
  2. Step 2: Convert to fraction form
    8,829.40/13,239.82 = 5,132.70/x
  3. Step 3: Cross multiply
    8,829.40x = 13,239.82 × 5,132.70
  4. Step 4: Simplify right side
    8,829.40x = 67,956,024.11
  5. Step 5: Solve for x
    x = 67,956,024.11/8,829.40
  6. Step 6: Final answer
    x = 7,696.56

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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.