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Finding the Fourth Proportional to 12,672.30, 19,008.45 and 11,750.70

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Solution

The fourth proportional to 12,672.30, 19,008.45 and 11,750.70 is: 17,626.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.30 : 19,008.45 = 11,750.70 : x
  2. Step 2: Convert to fraction form
    12,672.30/19,008.45 = 11,750.70/x
  3. Step 3: Cross multiply
    12,672.30x = 19,008.45 × 11,750.70
  4. Step 4: Simplify right side
    12,672.30x = 223,362,593.42
  5. Step 5: Solve for x
    x = 223,362,593.42/12,672.30
  6. Step 6: Final answer
    x = 17,626.05

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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.