Home / 10,581.84-15,872.64-2,684.40

Finding the Fourth Proportional to 10,581.84, 15,872.64 and 2,684.40

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Solution

The fourth proportional to 10,581.84, 15,872.64 and 2,684.40 is: 4,026.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.84 : 15,872.64 = 2,684.40 : x
  2. Step 2: Convert to fraction form
    10,581.84/15,872.64 = 2,684.40/x
  3. Step 3: Cross multiply
    10,581.84x = 15,872.64 × 2,684.40
  4. Step 4: Simplify right side
    10,581.84x = 42,608,514.82
  5. Step 5: Solve for x
    x = 42,608,514.82/10,581.84
  6. Step 6: Final answer
    x = 4,026.57

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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.