Home / 11,558.39-15,933.78-7,079.29

Finding the Fourth Proportional to 11,558.39, 15,933.78 and 7,079.29

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Solution

The fourth proportional to 11,558.39, 15,933.78 and 7,079.29 is: 9,759.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,558.39 : 15,933.78 = 7,079.29 : x
  2. Step 2: Convert to fraction form
    11,558.39/15,933.78 = 7,079.29/x
  3. Step 3: Cross multiply
    11,558.39x = 15,933.78 × 7,079.29
  4. Step 4: Simplify right side
    11,558.39x = 112,799,809.58
  5. Step 5: Solve for x
    x = 112,799,809.58/11,558.39
  6. Step 6: Final answer
    x = 9,759.13

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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.