Home / 10,921.92-15,072.48-6,141.96

Finding the Fourth Proportional to 10,921.92, 15,072.48 and 6,141.96

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Solution

The fourth proportional to 10,921.92, 15,072.48 and 6,141.96 is: 8,476.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.92 : 15,072.48 = 6,141.96 : x
  2. Step 2: Convert to fraction form
    10,921.92/15,072.48 = 6,141.96/x
  3. Step 3: Cross multiply
    10,921.92x = 15,072.48 × 6,141.96
  4. Step 4: Simplify right side
    10,921.92x = 92,574,569.26
  5. Step 5: Solve for x
    x = 92,574,569.26/10,921.92
  6. Step 6: Final answer
    x = 8,476.03

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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.