Home / 10,355.92-15,532.36-3,780.55

Finding the Fourth Proportional to 10,355.92, 15,532.36 and 3,780.55

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Solution

The fourth proportional to 10,355.92, 15,532.36 and 3,780.55 is: 5,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.92 : 15,532.36 = 3,780.55 : x
  2. Step 2: Convert to fraction form
    10,355.92/15,532.36 = 3,780.55/x
  3. Step 3: Cross multiply
    10,355.92x = 15,532.36 × 3,780.55
  4. Step 4: Simplify right side
    10,355.92x = 58,720,863.60
  5. Step 5: Solve for x
    x = 58,720,863.60/10,355.92
  6. Step 6: Final answer
    x = 5,670.27

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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.