Home / 9,403.62-12,976.49-5,154.68

Finding the Fourth Proportional to 9,403.62, 12,976.49 and 5,154.68

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Solution

The fourth proportional to 9,403.62, 12,976.49 and 5,154.68 is: 7,113.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.62 : 12,976.49 = 5,154.68 : x
  2. Step 2: Convert to fraction form
    9,403.62/12,976.49 = 5,154.68/x
  3. Step 3: Cross multiply
    9,403.62x = 12,976.49 × 5,154.68
  4. Step 4: Simplify right side
    9,403.62x = 66,889,627.70
  5. Step 5: Solve for x
    x = 66,889,627.70/9,403.62
  6. Step 6: Final answer
    x = 7,113.18

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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.