Home / 8,936.92-12,331.56-5,108.50

Finding the Fourth Proportional to 8,936.92, 12,331.56 and 5,108.50

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Solution

The fourth proportional to 8,936.92, 12,331.56 and 5,108.50 is: 7,048.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.92 : 12,331.56 = 5,108.50 : x
  2. Step 2: Convert to fraction form
    8,936.92/12,331.56 = 5,108.50/x
  3. Step 3: Cross multiply
    8,936.92x = 12,331.56 × 5,108.50
  4. Step 4: Simplify right side
    8,936.92x = 62,995,774.26
  5. Step 5: Solve for x
    x = 62,995,774.26/8,936.92
  6. Step 6: Final answer
    x = 7,048.94

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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.