Home / 8,921.16-13,386.60-5,402.52

Finding the Fourth Proportional to 8,921.16, 13,386.60 and 5,402.52

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Solution

The fourth proportional to 8,921.16, 13,386.60 and 5,402.52 is: 8,106.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.16 : 13,386.60 = 5,402.52 : x
  2. Step 2: Convert to fraction form
    8,921.16/13,386.60 = 5,402.52/x
  3. Step 3: Cross multiply
    8,921.16x = 13,386.60 × 5,402.52
  4. Step 4: Simplify right side
    8,921.16x = 72,321,374.23
  5. Step 5: Solve for x
    x = 72,321,374.23/8,921.16
  6. Step 6: Final answer
    x = 8,106.72

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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.