Home / 8,254.24-12,379.68-6,876.40

Finding the Fourth Proportional to 8,254.24, 12,379.68 and 6,876.40

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Solution

The fourth proportional to 8,254.24, 12,379.68 and 6,876.40 is: 10,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.24 : 12,379.68 = 6,876.40 : x
  2. Step 2: Convert to fraction form
    8,254.24/12,379.68 = 6,876.40/x
  3. Step 3: Cross multiply
    8,254.24x = 12,379.68 × 6,876.40
  4. Step 4: Simplify right side
    8,254.24x = 85,127,631.55
  5. Step 5: Solve for x
    x = 85,127,631.55/8,254.24
  6. Step 6: Final answer
    x = 10,313.20

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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.