Home / 18,778.79-25,887.13-14,294.75

Finding the Fourth Proportional to 18,778.79, 25,887.13 and 14,294.75

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Solution

The fourth proportional to 18,778.79, 25,887.13 and 14,294.75 is: 19,705.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778.79 : 25,887.13 = 14,294.75 : x
  2. Step 2: Convert to fraction form
    18,778.79/25,887.13 = 14,294.75/x
  3. Step 3: Cross multiply
    18,778.79x = 25,887.13 × 14,294.75
  4. Step 4: Simplify right side
    18,778.79x = 370,049,886.39
  5. Step 5: Solve for x
    x = 370,049,886.39/18,778.79
  6. Step 6: Final answer
    x = 19,705.73

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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.