Home / 13,850.20-19,113.30-7,881.92

Finding the Fourth Proportional to 13,850.20, 19,113.30 and 7,881.92

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Solution

The fourth proportional to 13,850.20, 19,113.30 and 7,881.92 is: 10,877.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,850.20 : 19,113.30 = 7,881.92 : x
  2. Step 2: Convert to fraction form
    13,850.20/19,113.30 = 7,881.92/x
  3. Step 3: Cross multiply
    13,850.20x = 19,113.30 × 7,881.92
  4. Step 4: Simplify right side
    13,850.20x = 150,649,477.64
  5. Step 5: Solve for x
    x = 150,649,477.64/13,850.20
  6. Step 6: Final answer
    x = 10,877.06

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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.