Home / 13,280.58-19,865.39-9,331.56

Finding the Fourth Proportional to 13,280.58, 19,865.39 and 9,331.56

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Solution

The fourth proportional to 13,280.58, 19,865.39 and 9,331.56 is: 13,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.58 : 19,865.39 = 9,331.56 : x
  2. Step 2: Convert to fraction form
    13,280.58/19,865.39 = 9,331.56/x
  3. Step 3: Cross multiply
    13,280.58x = 19,865.39 × 9,331.56
  4. Step 4: Simplify right side
    13,280.58x = 185,375,032.05
  5. Step 5: Solve for x
    x = 185,375,032.05/13,280.58
  6. Step 6: Final answer
    x = 13,958.35

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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.