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Finding the Fourth Proportional to 8,069.40, 12,104.10 and 6,854.40

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Solution

The fourth proportional to 8,069.40, 12,104.10 and 6,854.40 is: 10,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,069.40 : 12,104.10 = 6,854.40 : x
  2. Step 2: Convert to fraction form
    8,069.40/12,104.10 = 6,854.40/x
  3. Step 3: Cross multiply
    8,069.40x = 12,104.10 × 6,854.40
  4. Step 4: Simplify right side
    8,069.40x = 82,966,343.04
  5. Step 5: Solve for x
    x = 82,966,343.04/8,069.40
  6. Step 6: Final answer
    x = 10,281.60

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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.