Home / 18,731.66-25,850.34-12,363.84

Finding the Fourth Proportional to 18,731.66, 25,850.34 and 12,363.84

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Solution

The fourth proportional to 18,731.66, 25,850.34 and 12,363.84 is: 17,062.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.66 : 25,850.34 = 12,363.84 : x
  2. Step 2: Convert to fraction form
    18,731.66/25,850.34 = 12,363.84/x
  3. Step 3: Cross multiply
    18,731.66x = 25,850.34 × 12,363.84
  4. Step 4: Simplify right side
    18,731.66x = 319,609,467.71
  5. Step 5: Solve for x
    x = 319,609,467.71/18,731.66
  6. Step 6: Final answer
    x = 17,062.53

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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.