Home / 8,921.28-13,407.84-4,307.52

Finding the Fourth Proportional to 8,921.28, 13,407.84 and 4,307.52

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Solution

The fourth proportional to 8,921.28, 13,407.84 and 4,307.52 is: 6,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.28 : 13,407.84 = 4,307.52 : x
  2. Step 2: Convert to fraction form
    8,921.28/13,407.84 = 4,307.52/x
  3. Step 3: Cross multiply
    8,921.28x = 13,407.84 × 4,307.52
  4. Step 4: Simplify right side
    8,921.28x = 57,754,538.96
  5. Step 5: Solve for x
    x = 57,754,538.96/8,921.28
  6. Step 6: Final answer
    x = 6,473.80

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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.