Home / 17,687.80-24,408.66-9,621.20

Finding the Fourth Proportional to 17,687.80, 24,408.66 and 9,621.20

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Solution

The fourth proportional to 17,687.80, 24,408.66 and 9,621.20 is: 13,276.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,687.80 : 24,408.66 = 9,621.20 : x
  2. Step 2: Convert to fraction form
    17,687.80/24,408.66 = 9,621.20/x
  3. Step 3: Cross multiply
    17,687.80x = 24,408.66 × 9,621.20
  4. Step 4: Simplify right side
    17,687.80x = 234,840,599.59
  5. Step 5: Solve for x
    x = 234,840,599.59/17,687.80
  6. Step 6: Final answer
    x = 13,276.98

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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.