Home / 13,557.78-20,376.03-8,969.94

Finding the Fourth Proportional to 13,557.78, 20,376.03 and 8,969.94

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Solution

The fourth proportional to 13,557.78, 20,376.03 and 8,969.94 is: 13,480.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.78 : 20,376.03 = 8,969.94 : x
  2. Step 2: Convert to fraction form
    13,557.78/20,376.03 = 8,969.94/x
  3. Step 3: Cross multiply
    13,557.78x = 20,376.03 × 8,969.94
  4. Step 4: Simplify right side
    13,557.78x = 182,771,766.54
  5. Step 5: Solve for x
    x = 182,771,766.54/13,557.78
  6. Step 6: Final answer
    x = 13,480.95

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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.