Home / 8,728.56-12,040.38-5,536.08

Finding the Fourth Proportional to 8,728.56, 12,040.38 and 5,536.08

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Solution

The fourth proportional to 8,728.56, 12,040.38 and 5,536.08 is: 7,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.56 : 12,040.38 = 5,536.08 : x
  2. Step 2: Convert to fraction form
    8,728.56/12,040.38 = 5,536.08/x
  3. Step 3: Cross multiply
    8,728.56x = 12,040.38 × 5,536.08
  4. Step 4: Simplify right side
    8,728.56x = 66,656,506.91
  5. Step 5: Solve for x
    x = 66,656,506.91/8,728.56
  6. Step 6: Final answer
    x = 7,636.60

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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.