Home / 8,758.30-13,139.43-2,915.14

Finding the Fourth Proportional to 8,758.30, 13,139.43 and 2,915.14

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Solution

The fourth proportional to 8,758.30, 13,139.43 and 2,915.14 is: 4,373.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.30 : 13,139.43 = 2,915.14 : x
  2. Step 2: Convert to fraction form
    8,758.30/13,139.43 = 2,915.14/x
  3. Step 3: Cross multiply
    8,758.30x = 13,139.43 × 2,915.14
  4. Step 4: Simplify right side
    8,758.30x = 38,303,299.86
  5. Step 5: Solve for x
    x = 38,303,299.86/8,758.30
  6. Step 6: Final answer
    x = 4,373.37

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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.