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Finding the Fourth Proportional to 18,700.71, 28,027.67 and 9,343.35

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Solution

The fourth proportional to 18,700.71, 28,027.67 and 9,343.35 is: 14,003.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.71 : 28,027.67 = 9,343.35 : x
  2. Step 2: Convert to fraction form
    18,700.71/28,027.67 = 9,343.35/x
  3. Step 3: Cross multiply
    18,700.71x = 28,027.67 × 9,343.35
  4. Step 4: Simplify right side
    18,700.71x = 261,872,336.33
  5. Step 5: Solve for x
    x = 261,872,336.33/18,700.71
  6. Step 6: Final answer
    x = 14,003.34

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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.