Home / 16,972.80-25,475.40-8,662.20

Finding the Fourth Proportional to 16,972.80, 25,475.40 and 8,662.20

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Solution

The fourth proportional to 16,972.80, 25,475.40 and 8,662.20 is: 13,001.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.80 : 25,475.40 = 8,662.20 : x
  2. Step 2: Convert to fraction form
    16,972.80/25,475.40 = 8,662.20/x
  3. Step 3: Cross multiply
    16,972.80x = 25,475.40 × 8,662.20
  4. Step 4: Simplify right side
    16,972.80x = 220,673,009.88
  5. Step 5: Solve for x
    x = 220,673,009.88/16,972.80
  6. Step 6: Final answer
    x = 13,001.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.