Home / 13,976.61-20,965.68-5,655.39

Finding the Fourth Proportional to 13,976.61, 20,965.68 and 5,655.39

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Solution

The fourth proportional to 13,976.61, 20,965.68 and 5,655.39 is: 8,483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.61 : 20,965.68 = 5,655.39 : x
  2. Step 2: Convert to fraction form
    13,976.61/20,965.68 = 5,655.39/x
  3. Step 3: Cross multiply
    13,976.61x = 20,965.68 × 5,655.39
  4. Step 4: Simplify right side
    13,976.61x = 118,569,097.02
  5. Step 5: Solve for x
    x = 118,569,097.02/13,976.61
  6. Step 6: Final answer
    x = 8,483.39

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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.