Home / 11,569.42-15,965.66-6,853.78

Finding the Fourth Proportional to 11,569.42, 15,965.66 and 6,853.78

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Solution

The fourth proportional to 11,569.42, 15,965.66 and 6,853.78 is: 9,458.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,569.42 : 15,965.66 = 6,853.78 : x
  2. Step 2: Convert to fraction form
    11,569.42/15,965.66 = 6,853.78/x
  3. Step 3: Cross multiply
    11,569.42x = 15,965.66 × 6,853.78
  4. Step 4: Simplify right side
    11,569.42x = 109,425,121.19
  5. Step 5: Solve for x
    x = 109,425,121.19/11,569.42
  6. Step 6: Final answer
    x = 9,458.13

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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.