Home / 10,286.72-15,427.80-2,891.93

Finding the Fourth Proportional to 10,286.72, 15,427.80 and 2,891.93

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Solution

The fourth proportional to 10,286.72, 15,427.80 and 2,891.93 is: 4,337.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.72 : 15,427.80 = 2,891.93 : x
  2. Step 2: Convert to fraction form
    10,286.72/15,427.80 = 2,891.93/x
  3. Step 3: Cross multiply
    10,286.72x = 15,427.80 × 2,891.93
  4. Step 4: Simplify right side
    10,286.72x = 44,616,117.65
  5. Step 5: Solve for x
    x = 44,616,117.65/10,286.72
  6. Step 6: Final answer
    x = 4,337.25

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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.