Home / 9,571.12-13,209.40-5,379.38

Finding the Fourth Proportional to 9,571.12, 13,209.40 and 5,379.38

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Solution

The fourth proportional to 9,571.12, 13,209.40 and 5,379.38 is: 7,424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,571.12 : 13,209.40 = 5,379.38 : x
  2. Step 2: Convert to fraction form
    9,571.12/13,209.40 = 5,379.38/x
  3. Step 3: Cross multiply
    9,571.12x = 13,209.40 × 5,379.38
  4. Step 4: Simplify right side
    9,571.12x = 71,058,382.17
  5. Step 5: Solve for x
    x = 71,058,382.17/9,571.12
  6. Step 6: Final answer
    x = 7,424.25

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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.