Home / 15,060.63-20,786.59-8,691.33

Finding the Fourth Proportional to 15,060.63, 20,786.59 and 8,691.33

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Solution

The fourth proportional to 15,060.63, 20,786.59 and 8,691.33 is: 11,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.63 : 20,786.59 = 8,691.33 : x
  2. Step 2: Convert to fraction form
    15,060.63/20,786.59 = 8,691.33/x
  3. Step 3: Cross multiply
    15,060.63x = 20,786.59 × 8,691.33
  4. Step 4: Simplify right side
    15,060.63x = 180,663,113.26
  5. Step 5: Solve for x
    x = 180,663,113.26/15,060.63
  6. Step 6: Final answer
    x = 11,995.72

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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.