Home / 10,309.15-15,462.01-2,911.92

Finding the Fourth Proportional to 10,309.15, 15,462.01 and 2,911.92

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Solution

The fourth proportional to 10,309.15, 15,462.01 and 2,911.92 is: 4,367.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.15 : 15,462.01 = 2,911.92 : x
  2. Step 2: Convert to fraction form
    10,309.15/15,462.01 = 2,911.92/x
  3. Step 3: Cross multiply
    10,309.15x = 15,462.01 × 2,911.92
  4. Step 4: Simplify right side
    10,309.15x = 45,024,136.16
  5. Step 5: Solve for x
    x = 45,024,136.16/10,309.15
  6. Step 6: Final answer
    x = 4,367.40

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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.