Home / 8,117.98-12,177.43-2,275.05

Finding the Fourth Proportional to 8,117.98, 12,177.43 and 2,275.05

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Solution

The fourth proportional to 8,117.98, 12,177.43 and 2,275.05 is: 3,412.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.98 : 12,177.43 = 2,275.05 : x
  2. Step 2: Convert to fraction form
    8,117.98/12,177.43 = 2,275.05/x
  3. Step 3: Cross multiply
    8,117.98x = 12,177.43 × 2,275.05
  4. Step 4: Simplify right side
    8,117.98x = 27,704,262.12
  5. Step 5: Solve for x
    x = 27,704,262.12/8,117.98
  6. Step 6: Final answer
    x = 3,412.70

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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.