Home / 10,100.79-15,153.24-4,257.39

Finding the Fourth Proportional to 10,100.79, 15,153.24 and 4,257.39

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Solution

The fourth proportional to 10,100.79, 15,153.24 and 4,257.39 is: 6,386.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.79 : 15,153.24 = 4,257.39 : x
  2. Step 2: Convert to fraction form
    10,100.79/15,153.24 = 4,257.39/x
  3. Step 3: Cross multiply
    10,100.79x = 15,153.24 × 4,257.39
  4. Step 4: Simplify right side
    10,100.79x = 64,513,252.44
  5. Step 5: Solve for x
    x = 64,513,252.44/10,100.79
  6. Step 6: Final answer
    x = 6,386.95

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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.