Home / 8,269.90-11,417.96-6,378.14

Finding the Fourth Proportional to 8,269.90, 11,417.96 and 6,378.14

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Solution

The fourth proportional to 8,269.90, 11,417.96 and 6,378.14 is: 8,806.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.90 : 11,417.96 = 6,378.14 : x
  2. Step 2: Convert to fraction form
    8,269.90/11,417.96 = 6,378.14/x
  3. Step 3: Cross multiply
    8,269.90x = 11,417.96 × 6,378.14
  4. Step 4: Simplify right side
    8,269.90x = 72,825,391.88
  5. Step 5: Solve for x
    x = 72,825,391.88/8,269.90
  6. Step 6: Final answer
    x = 8,806.08

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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.