Home / 10,920.07-16,380.09-2,712.07

Finding the Fourth Proportional to 10,920.07, 16,380.09 and 2,712.07

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Solution

The fourth proportional to 10,920.07, 16,380.09 and 2,712.07 is: 4,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920.07 : 16,380.09 = 2,712.07 : x
  2. Step 2: Convert to fraction form
    10,920.07/16,380.09 = 2,712.07/x
  3. Step 3: Cross multiply
    10,920.07x = 16,380.09 × 2,712.07
  4. Step 4: Simplify right side
    10,920.07x = 44,423,950.69
  5. Step 5: Solve for x
    x = 44,423,950.69/10,920.07
  6. Step 6: Final answer
    x = 4,068.10

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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.