Home / 9,148.67-12,627.23-5,172.09

Finding the Fourth Proportional to 9,148.67, 12,627.23 and 5,172.09

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Solution

The fourth proportional to 9,148.67, 12,627.23 and 5,172.09 is: 7,138.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.67 : 12,627.23 = 5,172.09 : x
  2. Step 2: Convert to fraction form
    9,148.67/12,627.23 = 5,172.09/x
  3. Step 3: Cross multiply
    9,148.67x = 12,627.23 × 5,172.09
  4. Step 4: Simplify right side
    9,148.67x = 65,309,170.01
  5. Step 5: Solve for x
    x = 65,309,170.01/9,148.67
  6. Step 6: Final answer
    x = 7,138.65

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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.