Home / 18,838.80-28,263.12-10,066.56

Finding the Fourth Proportional to 18,838.80, 28,263.12 and 10,066.56

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Solution

The fourth proportional to 18,838.80, 28,263.12 and 10,066.56 is: 15,102.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.80 : 28,263.12 = 10,066.56 : x
  2. Step 2: Convert to fraction form
    18,838.80/28,263.12 = 10,066.56/x
  3. Step 3: Cross multiply
    18,838.80x = 28,263.12 × 10,066.56
  4. Step 4: Simplify right side
    18,838.80x = 284,512,393.27
  5. Step 5: Solve for x
    x = 284,512,393.27/18,838.80
  6. Step 6: Final answer
    x = 15,102.47

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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.