Home / 8,972.64-13,445.28-3,775.68

Finding the Fourth Proportional to 8,972.64, 13,445.28 and 3,775.68

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Solution

The fourth proportional to 8,972.64, 13,445.28 and 3,775.68 is: 5,657.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.64 : 13,445.28 = 3,775.68 : x
  2. Step 2: Convert to fraction form
    8,972.64/13,445.28 = 3,775.68/x
  3. Step 3: Cross multiply
    8,972.64x = 13,445.28 × 3,775.68
  4. Step 4: Simplify right side
    8,972.64x = 50,765,074.79
  5. Step 5: Solve for x
    x = 50,765,074.79/8,972.64
  6. Step 6: Final answer
    x = 5,657.76

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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.