Home / 18,506.11-25,539.03-10,122.61

Finding the Fourth Proportional to 18,506.11, 25,539.03 and 10,122.61

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Solution

The fourth proportional to 18,506.11, 25,539.03 and 10,122.61 is: 13,969.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,506.11 : 25,539.03 = 10,122.61 : x
  2. Step 2: Convert to fraction form
    18,506.11/25,539.03 = 10,122.61/x
  3. Step 3: Cross multiply
    18,506.11x = 25,539.03 × 10,122.61
  4. Step 4: Simplify right side
    18,506.11x = 258,521,462.16
  5. Step 5: Solve for x
    x = 258,521,462.16/18,506.11
  6. Step 6: Final answer
    x = 13,969.52

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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.