Home / 13,557.76-20,336.64-4,324.48

Finding the Fourth Proportional to 13,557.76, 20,336.64 and 4,324.48

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Solution

The fourth proportional to 13,557.76, 20,336.64 and 4,324.48 is: 6,486.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.76 : 20,336.64 = 4,324.48 : x
  2. Step 2: Convert to fraction form
    13,557.76/20,336.64 = 4,324.48/x
  3. Step 3: Cross multiply
    13,557.76x = 20,336.64 × 4,324.48
  4. Step 4: Simplify right side
    13,557.76x = 87,945,392.95
  5. Step 5: Solve for x
    x = 87,945,392.95/13,557.76
  6. Step 6: Final answer
    x = 6,486.72

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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.