Home / 9,936.90-13,712.90-5,399.59

Finding the Fourth Proportional to 9,936.90, 13,712.90 and 5,399.59

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Solution

The fourth proportional to 9,936.90, 13,712.90 and 5,399.59 is: 7,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,936.90 : 13,712.90 = 5,399.59 : x
  2. Step 2: Convert to fraction form
    9,936.90/13,712.90 = 5,399.59/x
  3. Step 3: Cross multiply
    9,936.90x = 13,712.90 × 5,399.59
  4. Step 4: Simplify right side
    9,936.90x = 74,044,037.71
  5. Step 5: Solve for x
    x = 74,044,037.71/9,936.90
  6. Step 6: Final answer
    x = 7,451.42

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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.