Home / 8,957.67-12,360.66-5,180.53

Finding the Fourth Proportional to 8,957.67, 12,360.66 and 5,180.53

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Solution

The fourth proportional to 8,957.67, 12,360.66 and 5,180.53 is: 7,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.67 : 12,360.66 = 5,180.53 : x
  2. Step 2: Convert to fraction form
    8,957.67/12,360.66 = 5,180.53/x
  3. Step 3: Cross multiply
    8,957.67x = 12,360.66 × 5,180.53
  4. Step 4: Simplify right side
    8,957.67x = 64,034,769.95
  5. Step 5: Solve for x
    x = 64,034,769.95/8,957.67
  6. Step 6: Final answer
    x = 7,148.60

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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.