Home / 15,418.05-21,274.64-9,042.24

Finding the Fourth Proportional to 15,418.05, 21,274.64 and 9,042.24

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Solution

The fourth proportional to 15,418.05, 21,274.64 and 9,042.24 is: 12,476.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.05 : 21,274.64 = 9,042.24 : x
  2. Step 2: Convert to fraction form
    15,418.05/21,274.64 = 9,042.24/x
  3. Step 3: Cross multiply
    15,418.05x = 21,274.64 × 9,042.24
  4. Step 4: Simplify right side
    15,418.05x = 192,370,400.79
  5. Step 5: Solve for x
    x = 192,370,400.79/15,418.05
  6. Step 6: Final answer
    x = 12,476.96

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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.