Home / 18,837.98-26,001.19-12,872.06

Finding the Fourth Proportional to 18,837.98, 26,001.19 and 12,872.06

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Solution

The fourth proportional to 18,837.98, 26,001.19 and 12,872.06 is: 17,766.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.98 : 26,001.19 = 12,872.06 : x
  2. Step 2: Convert to fraction form
    18,837.98/26,001.19 = 12,872.06/x
  3. Step 3: Cross multiply
    18,837.98x = 26,001.19 × 12,872.06
  4. Step 4: Simplify right side
    18,837.98x = 334,688,877.75
  5. Step 5: Solve for x
    x = 334,688,877.75/18,837.98
  6. Step 6: Final answer
    x = 17,766.71

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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.