Home / 15,542.58-21,447.72-9,168.84

Finding the Fourth Proportional to 15,542.58, 21,447.72 and 9,168.84

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Solution

The fourth proportional to 15,542.58, 21,447.72 and 9,168.84 is: 12,652.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,542.58 : 21,447.72 = 9,168.84 : x
  2. Step 2: Convert to fraction form
    15,542.58/21,447.72 = 9,168.84/x
  3. Step 3: Cross multiply
    15,542.58x = 21,447.72 × 9,168.84
  4. Step 4: Simplify right side
    15,542.58x = 196,650,713.04
  5. Step 5: Solve for x
    x = 196,650,713.04/15,542.58
  6. Step 6: Final answer
    x = 12,652.39

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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.