Home / 13,270.49-19,906.34-12,632.12

Finding the Fourth Proportional to 13,270.49, 19,906.34 and 12,632.12

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Solution

The fourth proportional to 13,270.49, 19,906.34 and 12,632.12 is: 18,948.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.49 : 19,906.34 = 12,632.12 : x
  2. Step 2: Convert to fraction form
    13,270.49/19,906.34 = 12,632.12/x
  3. Step 3: Cross multiply
    13,270.49x = 19,906.34 × 12,632.12
  4. Step 4: Simplify right side
    13,270.49x = 251,459,112.95
  5. Step 5: Solve for x
    x = 251,459,112.95/13,270.49
  6. Step 6: Final answer
    x = 18,948.75

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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.