Home / 11,141.80-15,376.98-6,426.24

Finding the Fourth Proportional to 11,141.80, 15,376.98 and 6,426.24

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Solution

The fourth proportional to 11,141.80, 15,376.98 and 6,426.24 is: 8,868.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.80 : 15,376.98 = 6,426.24 : x
  2. Step 2: Convert to fraction form
    11,141.80/15,376.98 = 6,426.24/x
  3. Step 3: Cross multiply
    11,141.80x = 15,376.98 × 6,426.24
  4. Step 4: Simplify right side
    11,141.80x = 98,816,163.96
  5. Step 5: Solve for x
    x = 98,816,163.96/11,141.80
  6. Step 6: Final answer
    x = 8,868.96

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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.