Home / 10,916.47-16,374.65-3,125.28

Finding the Fourth Proportional to 10,916.47, 16,374.65 and 3,125.28

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Solution

The fourth proportional to 10,916.47, 16,374.65 and 3,125.28 is: 4,687.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.47 : 16,374.65 = 3,125.28 : x
  2. Step 2: Convert to fraction form
    10,916.47/16,374.65 = 3,125.28/x
  3. Step 3: Cross multiply
    10,916.47x = 16,374.65 × 3,125.28
  4. Step 4: Simplify right side
    10,916.47x = 51,175,366.15
  5. Step 5: Solve for x
    x = 51,175,366.15/10,916.47
  6. Step 6: Final answer
    x = 4,687.91

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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.