Home / 11,141.12-15,381.42-6,955.04

Finding the Fourth Proportional to 11,141.12, 15,381.42 and 6,955.04

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Solution

The fourth proportional to 11,141.12, 15,381.42 and 6,955.04 is: 9,602.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.12 : 15,381.42 = 6,955.04 : x
  2. Step 2: Convert to fraction form
    11,141.12/15,381.42 = 6,955.04/x
  3. Step 3: Cross multiply
    11,141.12x = 15,381.42 × 6,955.04
  4. Step 4: Simplify right side
    11,141.12x = 106,978,391.36
  5. Step 5: Solve for x
    x = 106,978,391.36/11,141.12
  6. Step 6: Final answer
    x = 9,602.12

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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.