Home / 9,306.42-12,837.47-6,120.29

Finding the Fourth Proportional to 9,306.42, 12,837.47 and 6,120.29

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Solution

The fourth proportional to 9,306.42, 12,837.47 and 6,120.29 is: 8,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,306.42 : 12,837.47 = 6,120.29 : x
  2. Step 2: Convert to fraction form
    9,306.42/12,837.47 = 6,120.29/x
  3. Step 3: Cross multiply
    9,306.42x = 12,837.47 × 6,120.29
  4. Step 4: Simplify right side
    9,306.42x = 78,568,944.48
  5. Step 5: Solve for x
    x = 78,568,944.48/9,306.42
  6. Step 6: Final answer
    x = 8,442.45

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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.