Home / 8,935.76-13,398.24-4,257.20

Finding the Fourth Proportional to 8,935.76, 13,398.24 and 4,257.20

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Solution

The fourth proportional to 8,935.76, 13,398.24 and 4,257.20 is: 6,383.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.76 : 13,398.24 = 4,257.20 : x
  2. Step 2: Convert to fraction form
    8,935.76/13,398.24 = 4,257.20/x
  3. Step 3: Cross multiply
    8,935.76x = 13,398.24 × 4,257.20
  4. Step 4: Simplify right side
    8,935.76x = 57,038,987.33
  5. Step 5: Solve for x
    x = 57,038,987.33/8,935.76
  6. Step 6: Final answer
    x = 6,383.23

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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.