Home / 14,880.78-20,534.31-8,166.39

Finding the Fourth Proportional to 14,880.78, 20,534.31 and 8,166.39

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Solution

The fourth proportional to 14,880.78, 20,534.31 and 8,166.39 is: 11,268.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,880.78 : 20,534.31 = 8,166.39 : x
  2. Step 2: Convert to fraction form
    14,880.78/20,534.31 = 8,166.39/x
  3. Step 3: Cross multiply
    14,880.78x = 20,534.31 × 8,166.39
  4. Step 4: Simplify right side
    14,880.78x = 167,691,183.84
  5. Step 5: Solve for x
    x = 167,691,183.84/14,880.78
  6. Step 6: Final answer
    x = 11,268.98

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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.