Home / 15,819.54-23,721.57-8,427.66

Finding the Fourth Proportional to 15,819.54, 23,721.57 and 8,427.66

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Solution

The fourth proportional to 15,819.54, 23,721.57 and 8,427.66 is: 12,637.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,819.54 : 23,721.57 = 8,427.66 : x
  2. Step 2: Convert to fraction form
    15,819.54/23,721.57 = 8,427.66/x
  3. Step 3: Cross multiply
    15,819.54x = 23,721.57 × 8,427.66
  4. Step 4: Simplify right side
    15,819.54x = 199,917,326.63
  5. Step 5: Solve for x
    x = 199,917,326.63/15,819.54
  6. Step 6: Final answer
    x = 12,637.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.