Home / 8,764.48-13,146.72-2,921.12

Finding the Fourth Proportional to 8,764.48, 13,146.72 and 2,921.12

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Solution

The fourth proportional to 8,764.48, 13,146.72 and 2,921.12 is: 4,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.48 : 13,146.72 = 2,921.12 : x
  2. Step 2: Convert to fraction form
    8,764.48/13,146.72 = 2,921.12/x
  3. Step 3: Cross multiply
    8,764.48x = 13,146.72 × 2,921.12
  4. Step 4: Simplify right side
    8,764.48x = 38,403,146.73
  5. Step 5: Solve for x
    x = 38,403,146.73/8,764.48
  6. Step 6: Final answer
    x = 4,381.68

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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.