Home / 13,076.20-19,614.30-8,679.40

Finding the Fourth Proportional to 13,076.20, 19,614.30 and 8,679.40

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Solution

The fourth proportional to 13,076.20, 19,614.30 and 8,679.40 is: 13,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.20 : 19,614.30 = 8,679.40 : x
  2. Step 2: Convert to fraction form
    13,076.20/19,614.30 = 8,679.40/x
  3. Step 3: Cross multiply
    13,076.20x = 19,614.30 × 8,679.40
  4. Step 4: Simplify right side
    13,076.20x = 170,240,355.42
  5. Step 5: Solve for x
    x = 170,240,355.42/13,076.20
  6. Step 6: Final answer
    x = 13,019.10

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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.