Home / 10,440-15,660.23-4,890.29

Finding the Fourth Proportional to 10,440, 15,660.23 and 4,890.29

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Solution

The fourth proportional to 10,440, 15,660.23 and 4,890.29 is: 7,335.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440 : 15,660.23 = 4,890.29 : x
  2. Step 2: Convert to fraction form
    10,440/15,660.23 = 4,890.29/x
  3. Step 3: Cross multiply
    10,440x = 15,660.23 × 4,890.29
  4. Step 4: Simplify right side
    10,440x = 76,582,963.41
  5. Step 5: Solve for x
    x = 76,582,963.41/10,440
  6. Step 6: Final answer
    x = 7,335.53

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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.