Home / 8,877.30-12,243.15-5,339.85

Finding the Fourth Proportional to 8,877.30, 12,243.15 and 5,339.85

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Solution

The fourth proportional to 8,877.30, 12,243.15 and 5,339.85 is: 7,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.30 : 12,243.15 = 5,339.85 : x
  2. Step 2: Convert to fraction form
    8,877.30/12,243.15 = 5,339.85/x
  3. Step 3: Cross multiply
    8,877.30x = 12,243.15 × 5,339.85
  4. Step 4: Simplify right side
    8,877.30x = 65,376,584.53
  5. Step 5: Solve for x
    x = 65,376,584.53/8,877.30
  6. Step 6: Final answer
    x = 7,364.47

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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.