Home / 11,255.33-15,531.67-6,538.70

Finding the Fourth Proportional to 11,255.33, 15,531.67 and 6,538.70

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Solution

The fourth proportional to 11,255.33, 15,531.67 and 6,538.70 is: 9,023.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.33 : 15,531.67 = 6,538.70 : x
  2. Step 2: Convert to fraction form
    11,255.33/15,531.67 = 6,538.70/x
  3. Step 3: Cross multiply
    11,255.33x = 15,531.67 × 6,538.70
  4. Step 4: Simplify right side
    11,255.33x = 101,556,930.63
  5. Step 5: Solve for x
    x = 101,556,930.63/11,255.33
  6. Step 6: Final answer
    x = 9,023.01

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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.