Home / 9,869.39-13,619.96-5,393.42

Finding the Fourth Proportional to 9,869.39, 13,619.96 and 5,393.42

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Solution

The fourth proportional to 9,869.39, 13,619.96 and 5,393.42 is: 7,443.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.39 : 13,619.96 = 5,393.42 : x
  2. Step 2: Convert to fraction form
    9,869.39/13,619.96 = 5,393.42/x
  3. Step 3: Cross multiply
    9,869.39x = 13,619.96 × 5,393.42
  4. Step 4: Simplify right side
    9,869.39x = 73,458,205.94
  5. Step 5: Solve for x
    x = 73,458,205.94/9,869.39
  6. Step 6: Final answer
    x = 7,443.03

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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.