Home / 17,165.61-23,699.25-13,178.79

Finding the Fourth Proportional to 17,165.61, 23,699.25 and 13,178.79

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Solution

The fourth proportional to 17,165.61, 23,699.25 and 13,178.79 is: 18,194.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,165.61 : 23,699.25 = 13,178.79 : x
  2. Step 2: Convert to fraction form
    17,165.61/23,699.25 = 13,178.79/x
  3. Step 3: Cross multiply
    17,165.61x = 23,699.25 × 13,178.79
  4. Step 4: Simplify right side
    17,165.61x = 312,327,438.91
  5. Step 5: Solve for x
    x = 312,327,438.91/17,165.61
  6. Step 6: Final answer
    x = 18,194.95

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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.