Home / 8,618.49-12,923.63-3,937.11

Finding the Fourth Proportional to 8,618.49, 12,923.63 and 3,937.11

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Solution

The fourth proportional to 8,618.49, 12,923.63 and 3,937.11 is: 5,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.49 : 12,923.63 = 3,937.11 : x
  2. Step 2: Convert to fraction form
    8,618.49/12,923.63 = 3,937.11/x
  3. Step 3: Cross multiply
    8,618.49x = 12,923.63 × 3,937.11
  4. Step 4: Simplify right side
    8,618.49x = 50,881,795.15
  5. Step 5: Solve for x
    x = 50,881,795.15/8,618.49
  6. Step 6: Final answer
    x = 5,903.80

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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.