Home / 10,931.25-15,085.14-5,963.25

Finding the Fourth Proportional to 10,931.25, 15,085.14 and 5,963.25

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Solution

The fourth proportional to 10,931.25, 15,085.14 and 5,963.25 is: 8,229.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.25 : 15,085.14 = 5,963.25 : x
  2. Step 2: Convert to fraction form
    10,931.25/15,085.14 = 5,963.25/x
  3. Step 3: Cross multiply
    10,931.25x = 15,085.14 × 5,963.25
  4. Step 4: Simplify right side
    10,931.25x = 89,956,461.11
  5. Step 5: Solve for x
    x = 89,956,461.11/10,931.25
  6. Step 6: Final answer
    x = 8,229.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.