Home / 8,878.31-13,308.45-5,760.30

Finding the Fourth Proportional to 8,878.31, 13,308.45 and 5,760.30

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Solution

The fourth proportional to 8,878.31, 13,308.45 and 5,760.30 is: 8,634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.31 : 13,308.45 = 5,760.30 : x
  2. Step 2: Convert to fraction form
    8,878.31/13,308.45 = 5,760.30/x
  3. Step 3: Cross multiply
    8,878.31x = 13,308.45 × 5,760.30
  4. Step 4: Simplify right side
    8,878.31x = 76,660,650.38
  5. Step 5: Solve for x
    x = 76,660,650.38/8,878.31
  6. Step 6: Final answer
    x = 8,634.60

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1.5x scale

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.