Home / 12,972.20-19,458.10-8,801.84

Finding the Fourth Proportional to 12,972.20, 19,458.10 and 8,801.84

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Solution

The fourth proportional to 12,972.20, 19,458.10 and 8,801.84 is: 13,202.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.20 : 19,458.10 = 8,801.84 : x
  2. Step 2: Convert to fraction form
    12,972.20/19,458.10 = 8,801.84/x
  3. Step 3: Cross multiply
    12,972.20x = 19,458.10 × 8,801.84
  4. Step 4: Simplify right side
    12,972.20x = 171,267,082.90
  5. Step 5: Solve for x
    x = 171,267,082.90/12,972.20
  6. Step 6: Final answer
    x = 13,202.62

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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.