Home / 18,314.10-25,259.49-15,766.07

Finding the Fourth Proportional to 18,314.10, 25,259.49 and 15,766.07

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Solution

The fourth proportional to 18,314.10, 25,259.49 and 15,766.07 is: 21,745.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,314.10 : 25,259.49 = 15,766.07 : x
  2. Step 2: Convert to fraction form
    18,314.10/25,259.49 = 15,766.07/x
  3. Step 3: Cross multiply
    18,314.10x = 25,259.49 × 15,766.07
  4. Step 4: Simplify right side
    18,314.10x = 398,242,761.21
  5. Step 5: Solve for x
    x = 398,242,761.21/18,314.10
  6. Step 6: Final answer
    x = 21,745.15

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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.