Home / 11,118.89-15,342.77-6,641.62

Finding the Fourth Proportional to 11,118.89, 15,342.77 and 6,641.62

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Solution

The fourth proportional to 11,118.89, 15,342.77 and 6,641.62 is: 9,164.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.89 : 15,342.77 = 6,641.62 : x
  2. Step 2: Convert to fraction form
    11,118.89/15,342.77 = 6,641.62/x
  3. Step 3: Cross multiply
    11,118.89x = 15,342.77 × 6,641.62
  4. Step 4: Simplify right side
    11,118.89x = 101,900,826.33
  5. Step 5: Solve for x
    x = 101,900,826.33/11,118.89
  6. Step 6: Final answer
    x = 9,164.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.