Home / 12,201.95-18,301.30-3,437.55

Finding the Fourth Proportional to 12,201.95, 18,301.30 and 3,437.55

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Solution

The fourth proportional to 12,201.95, 18,301.30 and 3,437.55 is: 5,155.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.95 : 18,301.30 = 3,437.55 : x
  2. Step 2: Convert to fraction form
    12,201.95/18,301.30 = 3,437.55/x
  3. Step 3: Cross multiply
    12,201.95x = 18,301.30 × 3,437.55
  4. Step 4: Simplify right side
    12,201.95x = 62,911,625.22
  5. Step 5: Solve for x
    x = 62,911,625.22/12,201.95
  6. Step 6: Final answer
    x = 5,155.87

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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.