Home / 8,546.20-12,810.50-5,428.48

Finding the Fourth Proportional to 8,546.20, 12,810.50 and 5,428.48

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Solution

The fourth proportional to 8,546.20, 12,810.50 and 5,428.48 is: 8,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,546.20 : 12,810.50 = 5,428.48 : x
  2. Step 2: Convert to fraction form
    8,546.20/12,810.50 = 5,428.48/x
  3. Step 3: Cross multiply
    8,546.20x = 12,810.50 × 5,428.48
  4. Step 4: Simplify right side
    8,546.20x = 69,541,543.04
  5. Step 5: Solve for x
    x = 69,541,543.04/8,546.20
  6. Step 6: Final answer
    x = 8,137.13

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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.