Home / 14,518.76-20,036.28-8,231.54

Finding the Fourth Proportional to 14,518.76, 20,036.28 and 8,231.54

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Solution

The fourth proportional to 14,518.76, 20,036.28 and 8,231.54 is: 11,359.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,518.76 : 20,036.28 = 8,231.54 : x
  2. Step 2: Convert to fraction form
    14,518.76/20,036.28 = 8,231.54/x
  3. Step 3: Cross multiply
    14,518.76x = 20,036.28 × 8,231.54
  4. Step 4: Simplify right side
    14,518.76x = 164,929,440.27
  5. Step 5: Solve for x
    x = 164,929,440.27/14,518.76
  6. Step 6: Final answer
    x = 11,359.75

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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.