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Finding the Fourth Proportional to 13,418.07, 20,127.10 and 4,184.07

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Solution

The fourth proportional to 13,418.07, 20,127.10 and 4,184.07 is: 6,276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.07 : 20,127.10 = 4,184.07 : x
  2. Step 2: Convert to fraction form
    13,418.07/20,127.10 = 4,184.07/x
  3. Step 3: Cross multiply
    13,418.07x = 20,127.10 × 4,184.07
  4. Step 4: Simplify right side
    13,418.07x = 84,213,073.74
  5. Step 5: Solve for x
    x = 84,213,073.74/13,418.07
  6. Step 6: Final answer
    x = 6,276.10

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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.