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Finding the Fourth Proportional to 14,099.64, 21,150.03 and 7,899.15

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Solution

The fourth proportional to 14,099.64, 21,150.03 and 7,899.15 is: 11,849.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,099.64 : 21,150.03 = 7,899.15 : x
  2. Step 2: Convert to fraction form
    14,099.64/21,150.03 = 7,899.15/x
  3. Step 3: Cross multiply
    14,099.64x = 21,150.03 × 7,899.15
  4. Step 4: Simplify right side
    14,099.64x = 167,067,259.47
  5. Step 5: Solve for x
    x = 167,067,259.47/14,099.64
  6. Step 6: Final answer
    x = 11,849.04

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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.