Home / 9,436.78-13,022.40-5,245.30

Finding the Fourth Proportional to 9,436.78, 13,022.40 and 5,245.30

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Solution

The fourth proportional to 9,436.78, 13,022.40 and 5,245.30 is: 7,238.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,436.78 : 13,022.40 = 5,245.30 : x
  2. Step 2: Convert to fraction form
    9,436.78/13,022.40 = 5,245.30/x
  3. Step 3: Cross multiply
    9,436.78x = 13,022.40 × 5,245.30
  4. Step 4: Simplify right side
    9,436.78x = 68,306,394.72
  5. Step 5: Solve for x
    x = 68,306,394.72/9,436.78
  6. Step 6: Final answer
    x = 7,238.32

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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.