Home / 9,631.19-13,290.78-5,382.29

Finding the Fourth Proportional to 9,631.19, 13,290.78 and 5,382.29

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Solution

The fourth proportional to 9,631.19, 13,290.78 and 5,382.29 is: 7,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,631.19 : 13,290.78 = 5,382.29 : x
  2. Step 2: Convert to fraction form
    9,631.19/13,290.78 = 5,382.29/x
  3. Step 3: Cross multiply
    9,631.19x = 13,290.78 × 5,382.29
  4. Step 4: Simplify right side
    9,631.19x = 71,534,765.83
  5. Step 5: Solve for x
    x = 71,534,765.83/9,631.19
  6. Step 6: Final answer
    x = 7,427.41

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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.