Home / 15,825.09-21,844.12-9,113.39

Finding the Fourth Proportional to 15,825.09, 21,844.12 and 9,113.39

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Solution

The fourth proportional to 15,825.09, 21,844.12 and 9,113.39 is: 12,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,825.09 : 21,844.12 = 9,113.39 : x
  2. Step 2: Convert to fraction form
    15,825.09/21,844.12 = 9,113.39/x
  3. Step 3: Cross multiply
    15,825.09x = 21,844.12 × 9,113.39
  4. Step 4: Simplify right side
    15,825.09x = 199,074,042.23
  5. Step 5: Solve for x
    x = 199,074,042.23/15,825.09
  6. Step 6: Final answer
    x = 12,579.65

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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.