Home / 11,141.12-15,376.48-6,426.88

Finding the Fourth Proportional to 11,141.12, 15,376.48 and 6,426.88

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Solution

The fourth proportional to 11,141.12, 15,376.48 and 6,426.88 is: 8,870.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.12 : 15,376.48 = 6,426.88 : x
  2. Step 2: Convert to fraction form
    11,141.12/15,376.48 = 6,426.88/x
  3. Step 3: Cross multiply
    11,141.12x = 15,376.48 × 6,426.88
  4. Step 4: Simplify right side
    11,141.12x = 98,822,791.78
  5. Step 5: Solve for x
    x = 98,822,791.78/11,141.12
  6. Step 6: Final answer
    x = 8,870.09

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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.