Home / 10,326.89-15,491.10-2,931.95

Finding the Fourth Proportional to 10,326.89, 15,491.10 and 2,931.95

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Solution

The fourth proportional to 10,326.89, 15,491.10 and 2,931.95 is: 4,398.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,326.89 : 15,491.10 = 2,931.95 : x
  2. Step 2: Convert to fraction form
    10,326.89/15,491.10 = 2,931.95/x
  3. Step 3: Cross multiply
    10,326.89x = 15,491.10 × 2,931.95
  4. Step 4: Simplify right side
    10,326.89x = 45,419,076.74
  5. Step 5: Solve for x
    x = 45,419,076.74/10,326.89
  6. Step 6: Final answer
    x = 4,398.14

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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.