Home / 10,447.15-15,675.84-5,182.66

Finding the Fourth Proportional to 10,447.15, 15,675.84 and 5,182.66

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Solution

The fourth proportional to 10,447.15, 15,675.84 and 5,182.66 is: 7,776.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.15 : 15,675.84 = 5,182.66 : x
  2. Step 2: Convert to fraction form
    10,447.15/15,675.84 = 5,182.66/x
  3. Step 3: Cross multiply
    10,447.15x = 15,675.84 × 5,182.66
  4. Step 4: Simplify right side
    10,447.15x = 81,242,548.93
  5. Step 5: Solve for x
    x = 81,242,548.93/10,447.15
  6. Step 6: Final answer
    x = 7,776.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.