Home / 8,985.20-13,472.56-3,438.92

Finding the Fourth Proportional to 8,985.20, 13,472.56 and 3,438.92

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Solution

The fourth proportional to 8,985.20, 13,472.56 and 3,438.92 is: 5,156.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.20 : 13,472.56 = 3,438.92 : x
  2. Step 2: Convert to fraction form
    8,985.20/13,472.56 = 3,438.92/x
  3. Step 3: Cross multiply
    8,985.20x = 13,472.56 × 3,438.92
  4. Step 4: Simplify right side
    8,985.20x = 46,331,056.04
  5. Step 5: Solve for x
    x = 46,331,056.04/8,985.20
  6. Step 6: Final answer
    x = 5,156.37

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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.