Home / 10,135.66-13,986.96-5,659.82

Finding the Fourth Proportional to 10,135.66, 13,986.96 and 5,659.82

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Solution

The fourth proportional to 10,135.66, 13,986.96 and 5,659.82 is: 7,810.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.66 : 13,986.96 = 5,659.82 : x
  2. Step 2: Convert to fraction form
    10,135.66/13,986.96 = 5,659.82/x
  3. Step 3: Cross multiply
    10,135.66x = 13,986.96 × 5,659.82
  4. Step 4: Simplify right side
    10,135.66x = 79,163,675.95
  5. Step 5: Solve for x
    x = 79,163,675.95/10,135.66
  6. Step 6: Final answer
    x = 7,810.41

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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.