Home / 8,936.90-12,333.26-5,399.43

Finding the Fourth Proportional to 8,936.90, 12,333.26 and 5,399.43

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Solution

The fourth proportional to 8,936.90, 12,333.26 and 5,399.43 is: 7,451.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.90 : 12,333.26 = 5,399.43 : x
  2. Step 2: Convert to fraction form
    8,936.90/12,333.26 = 5,399.43/x
  3. Step 3: Cross multiply
    8,936.90x = 12,333.26 × 5,399.43
  4. Step 4: Simplify right side
    8,936.90x = 66,592,547.04
  5. Step 5: Solve for x
    x = 66,592,547.04/8,936.90
  6. Step 6: Final answer
    x = 7,451.41

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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.