Home / 15,188.47-20,959.48-8,814.73

Finding the Fourth Proportional to 15,188.47, 20,959.48 and 8,814.73

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Solution

The fourth proportional to 15,188.47, 20,959.48 and 8,814.73 is: 12,163.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.47 : 20,959.48 = 8,814.73 : x
  2. Step 2: Convert to fraction form
    15,188.47/20,959.48 = 8,814.73/x
  3. Step 3: Cross multiply
    15,188.47x = 20,959.48 × 8,814.73
  4. Step 4: Simplify right side
    15,188.47x = 184,752,157.14
  5. Step 5: Solve for x
    x = 184,752,157.14/15,188.47
  6. Step 6: Final answer
    x = 12,163.97

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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.