Home / 11,108.69-16,669.75-4,869.05

Finding the Fourth Proportional to 11,108.69, 16,669.75 and 4,869.05

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Solution

The fourth proportional to 11,108.69, 16,669.75 and 4,869.05 is: 7,306.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.69 : 16,669.75 = 4,869.05 : x
  2. Step 2: Convert to fraction form
    11,108.69/16,669.75 = 4,869.05/x
  3. Step 3: Cross multiply
    11,108.69x = 16,669.75 × 4,869.05
  4. Step 4: Simplify right side
    11,108.69x = 81,165,875.74
  5. Step 5: Solve for x
    x = 81,165,875.74/11,108.69
  6. Step 6: Final answer
    x = 7,306.52

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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.