Home / 15,539.11-21,443.97-8,465.53

Finding the Fourth Proportional to 15,539.11, 21,443.97 and 8,465.53

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Solution

The fourth proportional to 15,539.11, 21,443.97 and 8,465.53 is: 11,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.11 : 21,443.97 = 8,465.53 : x
  2. Step 2: Convert to fraction form
    15,539.11/21,443.97 = 8,465.53/x
  3. Step 3: Cross multiply
    15,539.11x = 21,443.97 × 8,465.53
  4. Step 4: Simplify right side
    15,539.11x = 181,534,589.70
  5. Step 5: Solve for x
    x = 181,534,589.70/15,539.11
  6. Step 6: Final answer
    x = 11,682.43

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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.