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Finding the Fourth Proportional to 14,287.70, 19,716.81 and 8,000.30

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Solution

The fourth proportional to 14,287.70, 19,716.81 and 8,000.30 is: 11,040.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.70 : 19,716.81 = 8,000.30 : x
  2. Step 2: Convert to fraction form
    14,287.70/19,716.81 = 8,000.30/x
  3. Step 3: Cross multiply
    14,287.70x = 19,716.81 × 8,000.30
  4. Step 4: Simplify right side
    14,287.70x = 157,740,395.04
  5. Step 5: Solve for x
    x = 157,740,395.04/14,287.70
  6. Step 6: Final answer
    x = 11,040.29

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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.