Home / 8,123.17-12,184.59-2,279.63

Finding the Fourth Proportional to 8,123.17, 12,184.59 and 2,279.63

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Solution

The fourth proportional to 8,123.17, 12,184.59 and 2,279.63 is: 3,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.17 : 12,184.59 = 2,279.63 : x
  2. Step 2: Convert to fraction form
    8,123.17/12,184.59 = 2,279.63/x
  3. Step 3: Cross multiply
    8,123.17x = 12,184.59 × 2,279.63
  4. Step 4: Simplify right side
    8,123.17x = 27,776,356.90
  5. Step 5: Solve for x
    x = 27,776,356.90/8,123.17
  6. Step 6: Final answer
    x = 3,419.40

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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.