Home / 8,444.20-12,666.30-5,679.40

Finding the Fourth Proportional to 8,444.20, 12,666.30 and 5,679.40

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Solution

The fourth proportional to 8,444.20, 12,666.30 and 5,679.40 is: 8,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,444.20 : 12,666.30 = 5,679.40 : x
  2. Step 2: Convert to fraction form
    8,444.20/12,666.30 = 5,679.40/x
  3. Step 3: Cross multiply
    8,444.20x = 12,666.30 × 5,679.40
  4. Step 4: Simplify right side
    8,444.20x = 71,936,984.22
  5. Step 5: Solve for x
    x = 71,936,984.22/8,444.20
  6. Step 6: Final answer
    x = 8,519.10

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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.