Home / 12,178.17-18,272.84-6,623.19

Finding the Fourth Proportional to 12,178.17, 18,272.84 and 6,623.19

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Solution

The fourth proportional to 12,178.17, 18,272.84 and 6,623.19 is: 9,937.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.17 : 18,272.84 = 6,623.19 : x
  2. Step 2: Convert to fraction form
    12,178.17/18,272.84 = 6,623.19/x
  3. Step 3: Cross multiply
    12,178.17x = 18,272.84 × 6,623.19
  4. Step 4: Simplify right side
    12,178.17x = 121,024,546.69
  5. Step 5: Solve for x
    x = 121,024,546.69/12,178.17
  6. Step 6: Final answer
    x = 9,937.82

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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.