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Finding the Fourth Proportional to 14,079.84, 21,100.02 and 10,945.50

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Solution

The fourth proportional to 14,079.84, 21,100.02 and 10,945.50 is: 16,402.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.84 : 21,100.02 = 10,945.50 : x
  2. Step 2: Convert to fraction form
    14,079.84/21,100.02 = 10,945.50/x
  3. Step 3: Cross multiply
    14,079.84x = 21,100.02 × 10,945.50
  4. Step 4: Simplify right side
    14,079.84x = 230,950,268.91
  5. Step 5: Solve for x
    x = 230,950,268.91/14,079.84
  6. Step 6: Final answer
    x = 16,402.90

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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.