Home / 10,145.52-15,218.28-2,749.98

Finding the Fourth Proportional to 10,145.52, 15,218.28 and 2,749.98

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Solution

The fourth proportional to 10,145.52, 15,218.28 and 2,749.98 is: 4,124.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.52 : 15,218.28 = 2,749.98 : x
  2. Step 2: Convert to fraction form
    10,145.52/15,218.28 = 2,749.98/x
  3. Step 3: Cross multiply
    10,145.52x = 15,218.28 × 2,749.98
  4. Step 4: Simplify right side
    10,145.52x = 41,849,965.63
  5. Step 5: Solve for x
    x = 41,849,965.63/10,145.52
  6. Step 6: Final answer
    x = 4,124.97

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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.