Home / 10,107.70-13,943.01-5,915.14

Finding the Fourth Proportional to 10,107.70, 13,943.01 and 5,915.14

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Solution

The fourth proportional to 10,107.70, 13,943.01 and 5,915.14 is: 8,159.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,107.70 : 13,943.01 = 5,915.14 : x
  2. Step 2: Convert to fraction form
    10,107.70/13,943.01 = 5,915.14/x
  3. Step 3: Cross multiply
    10,107.70x = 13,943.01 × 5,915.14
  4. Step 4: Simplify right side
    10,107.70x = 82,474,856.17
  5. Step 5: Solve for x
    x = 82,474,856.17/10,107.70
  6. Step 6: Final answer
    x = 8,159.61

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1.5x scale

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.