Home / 8,903.20-13,356.24-3,972.72

Finding the Fourth Proportional to 8,903.20, 13,356.24 and 3,972.72

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Solution

The fourth proportional to 8,903.20, 13,356.24 and 3,972.72 is: 5,959.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.20 : 13,356.24 = 3,972.72 : x
  2. Step 2: Convert to fraction form
    8,903.20/13,356.24 = 3,972.72/x
  3. Step 3: Cross multiply
    8,903.20x = 13,356.24 × 3,972.72
  4. Step 4: Simplify right side
    8,903.20x = 53,060,601.77
  5. Step 5: Solve for x
    x = 53,060,601.77/8,903.20
  6. Step 6: Final answer
    x = 5,959.72

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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.