Home / 18,999.72-26,176.68-13,251.66

Finding the Fourth Proportional to 18,999.72, 26,176.68 and 13,251.66

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Solution

The fourth proportional to 18,999.72, 26,176.68 and 13,251.66 is: 18,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.72 : 26,176.68 = 13,251.66 : x
  2. Step 2: Convert to fraction form
    18,999.72/26,176.68 = 13,251.66/x
  3. Step 3: Cross multiply
    18,999.72x = 26,176.68 × 13,251.66
  4. Step 4: Simplify right side
    18,999.72x = 346,884,463.29
  5. Step 5: Solve for x
    x = 346,884,463.29/18,999.72
  6. Step 6: Final answer
    x = 18,257.35

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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.