Home / 9,874.62-13,626.87-5,685.18

Finding the Fourth Proportional to 9,874.62, 13,626.87 and 5,685.18

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Solution

The fourth proportional to 9,874.62, 13,626.87 and 5,685.18 is: 7,845.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,874.62 : 13,626.87 = 5,685.18 : x
  2. Step 2: Convert to fraction form
    9,874.62/13,626.87 = 5,685.18/x
  3. Step 3: Cross multiply
    9,874.62x = 13,626.87 × 5,685.18
  4. Step 4: Simplify right side
    9,874.62x = 77,471,208.79
  5. Step 5: Solve for x
    x = 77,471,208.79/9,874.62
  6. Step 6: Final answer
    x = 7,845.49

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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.