Home / 14,943.82-20,620.56-8,976.55

Finding the Fourth Proportional to 14,943.82, 20,620.56 and 8,976.55

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Solution

The fourth proportional to 14,943.82, 20,620.56 and 8,976.55 is: 12,386.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,943.82 : 20,620.56 = 8,976.55 : x
  2. Step 2: Convert to fraction form
    14,943.82/20,620.56 = 8,976.55/x
  3. Step 3: Cross multiply
    14,943.82x = 20,620.56 × 8,976.55
  4. Step 4: Simplify right side
    14,943.82x = 185,101,487.87
  5. Step 5: Solve for x
    x = 185,101,487.87/14,943.82
  6. Step 6: Final answer
    x = 12,386.49

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1.5x scale

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.