Home / 13,700.05-18,906.35-8,039.17

Finding the Fourth Proportional to 13,700.05, 18,906.35 and 8,039.17

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Solution

The fourth proportional to 13,700.05, 18,906.35 and 8,039.17 is: 11,094.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.05 : 18,906.35 = 8,039.17 : x
  2. Step 2: Convert to fraction form
    13,700.05/18,906.35 = 8,039.17/x
  3. Step 3: Cross multiply
    13,700.05x = 18,906.35 × 8,039.17
  4. Step 4: Simplify right side
    13,700.05x = 151,991,227.00
  5. Step 5: Solve for x
    x = 151,991,227.00/13,700.05
  6. Step 6: Final answer
    x = 11,094.21

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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.