Home / 19,874.89-27,427.30-11,377.04

Finding the Fourth Proportional to 19,874.89, 27,427.30 and 11,377.04

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Solution

The fourth proportional to 19,874.89, 27,427.30 and 11,377.04 is: 15,700.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.89 : 27,427.30 = 11,377.04 : x
  2. Step 2: Convert to fraction form
    19,874.89/27,427.30 = 11,377.04/x
  3. Step 3: Cross multiply
    19,874.89x = 27,427.30 × 11,377.04
  4. Step 4: Simplify right side
    19,874.89x = 312,041,489.19
  5. Step 5: Solve for x
    x = 312,041,489.19/19,874.89
  6. Step 6: Final answer
    x = 15,700.29

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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.