Home / 9,169.40-12,656.79-5,392.41

Finding the Fourth Proportional to 9,169.40, 12,656.79 and 5,392.41

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Solution

The fourth proportional to 9,169.40, 12,656.79 and 5,392.41 is: 7,443.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169.40 : 12,656.79 = 5,392.41 : x
  2. Step 2: Convert to fraction form
    9,169.40/12,656.79 = 5,392.41/x
  3. Step 3: Cross multiply
    9,169.40x = 12,656.79 × 5,392.41
  4. Step 4: Simplify right side
    9,169.40x = 68,250,553.50
  5. Step 5: Solve for x
    x = 68,250,553.50/9,169.40
  6. Step 6: Final answer
    x = 7,443.29

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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.