Home / 8,758.36-13,130.45-5,978.04

Finding the Fourth Proportional to 8,758.36, 13,130.45 and 5,978.04

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Solution

The fourth proportional to 8,758.36, 13,130.45 and 5,978.04 is: 8,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.36 : 13,130.45 = 5,978.04 : x
  2. Step 2: Convert to fraction form
    8,758.36/13,130.45 = 5,978.04/x
  3. Step 3: Cross multiply
    8,758.36x = 13,130.45 × 5,978.04
  4. Step 4: Simplify right side
    8,758.36x = 78,494,289.67
  5. Step 5: Solve for x
    x = 78,494,289.67/8,758.36
  6. Step 6: Final answer
    x = 8,962.21

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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.