Home / 15,825.13-21,837.24-9,110.11

Finding the Fourth Proportional to 15,825.13, 21,837.24 and 9,110.11

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Solution

The fourth proportional to 15,825.13, 21,837.24 and 9,110.11 is: 12,571.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,825.13 : 21,837.24 = 9,110.11 : x
  2. Step 2: Convert to fraction form
    15,825.13/21,837.24 = 9,110.11/x
  3. Step 3: Cross multiply
    15,825.13x = 21,837.24 × 9,110.11
  4. Step 4: Simplify right side
    15,825.13x = 198,939,658.50
  5. Step 5: Solve for x
    x = 198,939,658.50/15,825.13
  6. Step 6: Final answer
    x = 12,571.12

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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.