Home / 8,154.09-11,256.56-5,515.34

Finding the Fourth Proportional to 8,154.09, 11,256.56 and 5,515.34

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Solution

The fourth proportional to 8,154.09, 11,256.56 and 5,515.34 is: 7,613.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.09 : 11,256.56 = 5,515.34 : x
  2. Step 2: Convert to fraction form
    8,154.09/11,256.56 = 5,515.34/x
  3. Step 3: Cross multiply
    8,154.09x = 11,256.56 × 5,515.34
  4. Step 4: Simplify right side
    8,154.09x = 62,083,748.02
  5. Step 5: Solve for x
    x = 62,083,748.02/8,154.09
  6. Step 6: Final answer
    x = 7,613.81

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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.