Home / 10,108.16-13,932.24-7,745.12

Finding the Fourth Proportional to 10,108.16, 13,932.24 and 7,745.12

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Solution

The fourth proportional to 10,108.16, 13,932.24 and 7,745.12 is: 10,675.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.16 : 13,932.24 = 7,745.12 : x
  2. Step 2: Convert to fraction form
    10,108.16/13,932.24 = 7,745.12/x
  3. Step 3: Cross multiply
    10,108.16x = 13,932.24 × 7,745.12
  4. Step 4: Simplify right side
    10,108.16x = 107,906,870.67
  5. Step 5: Solve for x
    x = 107,906,870.67/10,108.16
  6. Step 6: Final answer
    x = 10,675.22

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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.