Home / 16,120.47-22,242.82-9,745.79

Finding the Fourth Proportional to 16,120.47, 22,242.82 and 9,745.79

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Solution

The fourth proportional to 16,120.47, 22,242.82 and 9,745.79 is: 13,447.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,120.47 : 22,242.82 = 9,745.79 : x
  2. Step 2: Convert to fraction form
    16,120.47/22,242.82 = 9,745.79/x
  3. Step 3: Cross multiply
    16,120.47x = 22,242.82 × 9,745.79
  4. Step 4: Simplify right side
    16,120.47x = 216,773,881.98
  5. Step 5: Solve for x
    x = 216,773,881.98/16,120.47
  6. Step 6: Final answer
    x = 13,447.12

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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.