Home / 11,169.51-15,412.79-6,693.15

Finding the Fourth Proportional to 11,169.51, 15,412.79 and 6,693.15

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Solution

The fourth proportional to 11,169.51, 15,412.79 and 6,693.15 is: 9,235.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,169.51 : 15,412.79 = 6,693.15 : x
  2. Step 2: Convert to fraction form
    11,169.51/15,412.79 = 6,693.15/x
  3. Step 3: Cross multiply
    11,169.51x = 15,412.79 × 6,693.15
  4. Step 4: Simplify right side
    11,169.51x = 103,160,115.39
  5. Step 5: Solve for x
    x = 103,160,115.39/11,169.51
  6. Step 6: Final answer
    x = 9,235.87

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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.