Home / 10,522.20-15,782.68-3,947.83

Finding the Fourth Proportional to 10,522.20, 15,782.68 and 3,947.83

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Solution

The fourth proportional to 10,522.20, 15,782.68 and 3,947.83 is: 5,921.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,522.20 : 15,782.68 = 3,947.83 : x
  2. Step 2: Convert to fraction form
    10,522.20/15,782.68 = 3,947.83/x
  3. Step 3: Cross multiply
    10,522.20x = 15,782.68 × 3,947.83
  4. Step 4: Simplify right side
    10,522.20x = 62,307,337.58
  5. Step 5: Solve for x
    x = 62,307,337.58/10,522.20
  6. Step 6: Final answer
    x = 5,921.51

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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.