Home / 15,338.43-21,168.36-8,625.74

Finding the Fourth Proportional to 15,338.43, 21,168.36 and 8,625.74

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Solution

The fourth proportional to 15,338.43, 21,168.36 and 8,625.74 is: 11,904.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.43 : 21,168.36 = 8,625.74 : x
  2. Step 2: Convert to fraction form
    15,338.43/21,168.36 = 8,625.74/x
  3. Step 3: Cross multiply
    15,338.43x = 21,168.36 × 8,625.74
  4. Step 4: Simplify right side
    15,338.43x = 182,592,663.74
  5. Step 5: Solve for x
    x = 182,592,663.74/15,338.43
  6. Step 6: Final answer
    x = 11,904.26

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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.