Home / 18,409.22-25,400.31-10,854.95

Finding the Fourth Proportional to 18,409.22, 25,400.31 and 10,854.95

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Solution

The fourth proportional to 18,409.22, 25,400.31 and 10,854.95 is: 14,977.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409.22 : 25,400.31 = 10,854.95 : x
  2. Step 2: Convert to fraction form
    18,409.22/25,400.31 = 10,854.95/x
  3. Step 3: Cross multiply
    18,409.22x = 25,400.31 × 10,854.95
  4. Step 4: Simplify right side
    18,409.22x = 275,719,117.83
  5. Step 5: Solve for x
    x = 275,719,117.83/18,409.22
  6. Step 6: Final answer
    x = 14,977.23

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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.