Home / 9,180.31-12,667.80-5,200.57

Finding the Fourth Proportional to 9,180.31, 12,667.80 and 5,200.57

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Solution

The fourth proportional to 9,180.31, 12,667.80 and 5,200.57 is: 7,176.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.31 : 12,667.80 = 5,200.57 : x
  2. Step 2: Convert to fraction form
    9,180.31/12,667.80 = 5,200.57/x
  3. Step 3: Cross multiply
    9,180.31x = 12,667.80 × 5,200.57
  4. Step 4: Simplify right side
    9,180.31x = 65,879,780.65
  5. Step 5: Solve for x
    x = 65,879,780.65/9,180.31
  6. Step 6: Final answer
    x = 7,176.20

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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.