Home / 11,388.12-17,082.70-3,490.07

Finding the Fourth Proportional to 11,388.12, 17,082.70 and 3,490.07

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Solution

The fourth proportional to 11,388.12, 17,082.70 and 3,490.07 is: 5,235.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.12 : 17,082.70 = 3,490.07 : x
  2. Step 2: Convert to fraction form
    11,388.12/17,082.70 = 3,490.07/x
  3. Step 3: Cross multiply
    11,388.12x = 17,082.70 × 3,490.07
  4. Step 4: Simplify right side
    11,388.12x = 59,619,733.38
  5. Step 5: Solve for x
    x = 59,619,733.38/11,388.12
  6. Step 6: Final answer
    x = 5,235.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.