Home / 13,141.38-19,712.07-3,280.64

Finding the Fourth Proportional to 13,141.38, 19,712.07 and 3,280.64

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Solution

The fourth proportional to 13,141.38, 19,712.07 and 3,280.64 is: 4,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141.38 : 19,712.07 = 3,280.64 : x
  2. Step 2: Convert to fraction form
    13,141.38/19,712.07 = 3,280.64/x
  3. Step 3: Cross multiply
    13,141.38x = 19,712.07 × 3,280.64
  4. Step 4: Simplify right side
    13,141.38x = 64,668,254.60
  5. Step 5: Solve for x
    x = 64,668,254.60/13,141.38
  6. Step 6: Final answer
    x = 4,920.96

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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.