Home / 9,403.14-12,979.19-5,426.85

Finding the Fourth Proportional to 9,403.14, 12,979.19 and 5,426.85

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Solution

The fourth proportional to 9,403.14, 12,979.19 and 5,426.85 is: 7,490.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.14 : 12,979.19 = 5,426.85 : x
  2. Step 2: Convert to fraction form
    9,403.14/12,979.19 = 5,426.85/x
  3. Step 3: Cross multiply
    9,403.14x = 12,979.19 × 5,426.85
  4. Step 4: Simplify right side
    9,403.14x = 70,436,117.25
  5. Step 5: Solve for x
    x = 70,436,117.25/9,403.14
  6. Step 6: Final answer
    x = 7,490.70

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Double scale
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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.