Home / 8,583.68-11,819.15-7,515.47

Finding the Fourth Proportional to 8,583.68, 11,819.15 and 7,515.47

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Solution

The fourth proportional to 8,583.68, 11,819.15 and 7,515.47 is: 10,348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,583.68 : 11,819.15 = 7,515.47 : x
  2. Step 2: Convert to fraction form
    8,583.68/11,819.15 = 7,515.47/x
  3. Step 3: Cross multiply
    8,583.68x = 11,819.15 × 7,515.47
  4. Step 4: Simplify right side
    8,583.68x = 88,826,429.67
  5. Step 5: Solve for x
    x = 88,826,429.67/8,583.68
  6. Step 6: Final answer
    x = 10,348.29

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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.