Home / 10,117.59-13,961.82-5,641.42

Finding the Fourth Proportional to 10,117.59, 13,961.82 and 5,641.42

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Solution

The fourth proportional to 10,117.59, 13,961.82 and 5,641.42 is: 7,784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.59 : 13,961.82 = 5,641.42 : x
  2. Step 2: Convert to fraction form
    10,117.59/13,961.82 = 5,641.42/x
  3. Step 3: Cross multiply
    10,117.59x = 13,961.82 × 5,641.42
  4. Step 4: Simplify right side
    10,117.59x = 78,764,490.58
  5. Step 5: Solve for x
    x = 78,764,490.58/10,117.59
  6. Step 6: Final answer
    x = 7,784.91

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