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Finding the Fourth Proportional to 14,602.71, 20,163.57 and 13,868.85

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Solution

The fourth proportional to 14,602.71, 20,163.57 and 13,868.85 is: 19,150.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,602.71 : 20,163.57 = 13,868.85 : x
  2. Step 2: Convert to fraction form
    14,602.71/20,163.57 = 13,868.85/x
  3. Step 3: Cross multiply
    14,602.71x = 20,163.57 × 13,868.85
  4. Step 4: Simplify right side
    14,602.71x = 279,645,527.79
  5. Step 5: Solve for x
    x = 279,645,527.79/14,602.71
  6. Step 6: Final answer
    x = 19,150.25

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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.