Home / 12,637.18-18,959.41-3,873.38

Finding the Fourth Proportional to 12,637.18, 18,959.41 and 3,873.38

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Solution

The fourth proportional to 12,637.18, 18,959.41 and 3,873.38 is: 5,811.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.18 : 18,959.41 = 3,873.38 : x
  2. Step 2: Convert to fraction form
    12,637.18/18,959.41 = 3,873.38/x
  3. Step 3: Cross multiply
    12,637.18x = 18,959.41 × 3,873.38
  4. Step 4: Simplify right side
    12,637.18x = 73,437,016.20
  5. Step 5: Solve for x
    x = 73,437,016.20/12,637.18
  6. Step 6: Final answer
    x = 5,811.19

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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.