Home / 8,747.15-13,120.88-4,876.16

Finding the Fourth Proportional to 8,747.15, 13,120.88 and 4,876.16

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Solution

The fourth proportional to 8,747.15, 13,120.88 and 4,876.16 is: 7,314.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.15 : 13,120.88 = 4,876.16 : x
  2. Step 2: Convert to fraction form
    8,747.15/13,120.88 = 4,876.16/x
  3. Step 3: Cross multiply
    8,747.15x = 13,120.88 × 4,876.16
  4. Step 4: Simplify right side
    8,747.15x = 63,979,420.24
  5. Step 5: Solve for x
    x = 63,979,420.24/8,747.15
  6. Step 6: Final answer
    x = 7,314.32

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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.