Home / 15,239.76-21,029.91-8,525.34

Finding the Fourth Proportional to 15,239.76, 21,029.91 and 8,525.34

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Solution

The fourth proportional to 15,239.76, 21,029.91 and 8,525.34 is: 11,764.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.76 : 21,029.91 = 8,525.34 : x
  2. Step 2: Convert to fraction form
    15,239.76/21,029.91 = 8,525.34/x
  3. Step 3: Cross multiply
    15,239.76x = 21,029.91 × 8,525.34
  4. Step 4: Simplify right side
    15,239.76x = 179,287,132.92
  5. Step 5: Solve for x
    x = 179,287,132.92/15,239.76
  6. Step 6: Final answer
    x = 11,764.43

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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.