Home / 8,914.61-12,301.88-5,137.79

Finding the Fourth Proportional to 8,914.61, 12,301.88 and 5,137.79

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Solution

The fourth proportional to 8,914.61, 12,301.88 and 5,137.79 is: 7,089.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.61 : 12,301.88 = 5,137.79 : x
  2. Step 2: Convert to fraction form
    8,914.61/12,301.88 = 5,137.79/x
  3. Step 3: Cross multiply
    8,914.61x = 12,301.88 × 5,137.79
  4. Step 4: Simplify right side
    8,914.61x = 63,204,476.05
  5. Step 5: Solve for x
    x = 63,204,476.05/8,914.61
  6. Step 6: Final answer
    x = 7,089.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.