Home / 8,954.82-12,356.71-5,177.40

Finding the Fourth Proportional to 8,954.82, 12,356.71 and 5,177.40

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Solution

The fourth proportional to 8,954.82, 12,356.71 and 5,177.40 is: 7,144.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.82 : 12,356.71 = 5,177.40 : x
  2. Step 2: Convert to fraction form
    8,954.82/12,356.71 = 5,177.40/x
  3. Step 3: Cross multiply
    8,954.82x = 12,356.71 × 5,177.40
  4. Step 4: Simplify right side
    8,954.82x = 63,975,630.35
  5. Step 5: Solve for x
    x = 63,975,630.35/8,954.82
  6. Step 6: Final answer
    x = 7,144.27

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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.