Home / 12,549.95-18,820.81-4,227.73

Finding the Fourth Proportional to 12,549.95, 18,820.81 and 4,227.73

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Solution

The fourth proportional to 12,549.95, 18,820.81 and 4,227.73 is: 6,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.95 : 18,820.81 = 4,227.73 : x
  2. Step 2: Convert to fraction form
    12,549.95/18,820.81 = 4,227.73/x
  3. Step 3: Cross multiply
    12,549.95x = 18,820.81 × 4,227.73
  4. Step 4: Simplify right side
    12,549.95x = 79,569,187.82
  5. Step 5: Solve for x
    x = 79,569,187.82/12,549.95
  6. Step 6: Final answer
    x = 6,340.20

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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.