Home / 8,121.74-11,207.76-4,585.28

Finding the Fourth Proportional to 8,121.74, 11,207.76 and 4,585.28

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Solution

The fourth proportional to 8,121.74, 11,207.76 and 4,585.28 is: 6,327.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.74 : 11,207.76 = 4,585.28 : x
  2. Step 2: Convert to fraction form
    8,121.74/11,207.76 = 4,585.28/x
  3. Step 3: Cross multiply
    8,121.74x = 11,207.76 × 4,585.28
  4. Step 4: Simplify right side
    8,121.74x = 51,390,661.73
  5. Step 5: Solve for x
    x = 51,390,661.73/8,121.74
  6. Step 6: Final answer
    x = 6,327.55

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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.