Home / 13,847.28-19,110.30-7,880.88

Finding the Fourth Proportional to 13,847.28, 19,110.30 and 7,880.88

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Solution

The fourth proportional to 13,847.28, 19,110.30 and 7,880.88 is: 10,876.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.28 : 19,110.30 = 7,880.88 : x
  2. Step 2: Convert to fraction form
    13,847.28/19,110.30 = 7,880.88/x
  3. Step 3: Cross multiply
    13,847.28x = 19,110.30 × 7,880.88
  4. Step 4: Simplify right side
    13,847.28x = 150,605,981.06
  5. Step 5: Solve for x
    x = 150,605,981.06/13,847.28
  6. Step 6: Final answer
    x = 10,876.21

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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.