Home / 10,282.57-15,423.71-2,491.45

Finding the Fourth Proportional to 10,282.57, 15,423.71 and 2,491.45

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Solution

The fourth proportional to 10,282.57, 15,423.71 and 2,491.45 is: 3,737.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,282.57 : 15,423.71 = 2,491.45 : x
  2. Step 2: Convert to fraction form
    10,282.57/15,423.71 = 2,491.45/x
  3. Step 3: Cross multiply
    10,282.57x = 15,423.71 × 2,491.45
  4. Step 4: Simplify right side
    10,282.57x = 38,427,351.26
  5. Step 5: Solve for x
    x = 38,427,351.26/10,282.57
  6. Step 6: Final answer
    x = 3,737.14

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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.