Home / 11,152.36-15,382.20-9,471.12

Finding the Fourth Proportional to 11,152.36, 15,382.20 and 9,471.12

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Solution

The fourth proportional to 11,152.36, 15,382.20 and 9,471.12 is: 13,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.36 : 15,382.20 = 9,471.12 : x
  2. Step 2: Convert to fraction form
    11,152.36/15,382.20 = 9,471.12/x
  3. Step 3: Cross multiply
    11,152.36x = 15,382.20 × 9,471.12
  4. Step 4: Simplify right side
    11,152.36x = 145,686,662.06
  5. Step 5: Solve for x
    x = 145,686,662.06/11,152.36
  6. Step 6: Final answer
    x = 13,063.30

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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.