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Finding the Fourth Proportional to 14,077.99, 21,112.71 and 7,410.88

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Solution

The fourth proportional to 14,077.99, 21,112.71 and 7,410.88 is: 11,114.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,077.99 : 21,112.71 = 7,410.88 : x
  2. Step 2: Convert to fraction form
    14,077.99/21,112.71 = 7,410.88/x
  3. Step 3: Cross multiply
    14,077.99x = 21,112.71 × 7,410.88
  4. Step 4: Simplify right side
    14,077.99x = 156,463,760.28
  5. Step 5: Solve for x
    x = 156,463,760.28/14,077.99
  6. Step 6: Final answer
    x = 11,114.07

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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.