Home / 12,546.73-18,820.10-3,187.45

Finding the Fourth Proportional to 12,546.73, 18,820.10 and 3,187.45

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Solution

The fourth proportional to 12,546.73, 18,820.10 and 3,187.45 is: 4,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.73 : 18,820.10 = 3,187.45 : x
  2. Step 2: Convert to fraction form
    12,546.73/18,820.10 = 3,187.45/x
  3. Step 3: Cross multiply
    12,546.73x = 18,820.10 × 3,187.45
  4. Step 4: Simplify right side
    12,546.73x = 59,988,159.24
  5. Step 5: Solve for x
    x = 59,988,159.24/12,546.73
  6. Step 6: Final answer
    x = 4,781.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.