Home / 8,962.40-13,447.56-3,123.20

Finding the Fourth Proportional to 8,962.40, 13,447.56 and 3,123.20

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Solution

The fourth proportional to 8,962.40, 13,447.56 and 3,123.20 is: 4,686.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,962.40 : 13,447.56 = 3,123.20 : x
  2. Step 2: Convert to fraction form
    8,962.40/13,447.56 = 3,123.20/x
  3. Step 3: Cross multiply
    8,962.40x = 13,447.56 × 3,123.20
  4. Step 4: Simplify right side
    8,962.40x = 41,999,419.39
  5. Step 5: Solve for x
    x = 41,999,419.39/8,962.40
  6. Step 6: Final answer
    x = 4,686.18

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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.