Home / 18,371.93-25,365.78-12,331.23

Finding the Fourth Proportional to 18,371.93, 25,365.78 and 12,331.23

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Solution

The fourth proportional to 18,371.93, 25,365.78 and 12,331.23 is: 17,025.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.93 : 25,365.78 = 12,331.23 : x
  2. Step 2: Convert to fraction form
    18,371.93/25,365.78 = 12,331.23/x
  3. Step 3: Cross multiply
    18,371.93x = 25,365.78 × 12,331.23
  4. Step 4: Simplify right side
    18,371.93x = 312,791,267.31
  5. Step 5: Solve for x
    x = 312,791,267.31/18,371.93
  6. Step 6: Final answer
    x = 17,025.50

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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.