Home / 10,080.68-13,906.50-7,838.60

Finding the Fourth Proportional to 10,080.68, 13,906.50 and 7,838.60

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Solution

The fourth proportional to 10,080.68, 13,906.50 and 7,838.60 is: 10,813.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.68 : 13,906.50 = 7,838.60 : x
  2. Step 2: Convert to fraction form
    10,080.68/13,906.50 = 7,838.60/x
  3. Step 3: Cross multiply
    10,080.68x = 13,906.50 × 7,838.60
  4. Step 4: Simplify right side
    10,080.68x = 109,007,490.90
  5. Step 5: Solve for x
    x = 109,007,490.90/10,080.68
  6. Step 6: Final answer
    x = 10,813.51

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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.