Home / 8,219.49-12,325.56-5,099.37

Finding the Fourth Proportional to 8,219.49, 12,325.56 and 5,099.37

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Solution

The fourth proportional to 8,219.49, 12,325.56 and 5,099.37 is: 7,646.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.49 : 12,325.56 = 5,099.37 : x
  2. Step 2: Convert to fraction form
    8,219.49/12,325.56 = 5,099.37/x
  3. Step 3: Cross multiply
    8,219.49x = 12,325.56 × 5,099.37
  4. Step 4: Simplify right side
    8,219.49x = 62,852,590.90
  5. Step 5: Solve for x
    x = 62,852,590.90/8,219.49
  6. Step 6: Final answer
    x = 7,646.78

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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.