Home / 18,669.03-25,761.42-11,113.08

Finding the Fourth Proportional to 18,669.03, 25,761.42 and 11,113.08

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Solution

The fourth proportional to 18,669.03, 25,761.42 and 11,113.08 is: 15,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.03 : 25,761.42 = 11,113.08 : x
  2. Step 2: Convert to fraction form
    18,669.03/25,761.42 = 11,113.08/x
  3. Step 3: Cross multiply
    18,669.03x = 25,761.42 × 11,113.08
  4. Step 4: Simplify right side
    18,669.03x = 286,288,721.37
  5. Step 5: Solve for x
    x = 286,288,721.37/18,669.03
  6. Step 6: Final answer
    x = 15,334.95

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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.