Home / 18,278.50-25,224.33-9,895

Finding the Fourth Proportional to 18,278.50, 25,224.33 and 9,895

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Solution

The fourth proportional to 18,278.50, 25,224.33 and 9,895 is: 13,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.50 : 25,224.33 = 9,895 : x
  2. Step 2: Convert to fraction form
    18,278.50/25,224.33 = 9,895/x
  3. Step 3: Cross multiply
    18,278.50x = 25,224.33 × 9,895
  4. Step 4: Simplify right side
    18,278.50x = 249,594,745.35
  5. Step 5: Solve for x
    x = 249,594,745.35/18,278.50
  6. Step 6: Final answer
    x = 13,655.10

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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.