Home / 12,122.36-18,184.30-4,224.56

Finding the Fourth Proportional to 12,122.36, 18,184.30 and 4,224.56

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Solution

The fourth proportional to 12,122.36, 18,184.30 and 4,224.56 is: 6,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.36 : 18,184.30 = 4,224.56 : x
  2. Step 2: Convert to fraction form
    12,122.36/18,184.30 = 4,224.56/x
  3. Step 3: Cross multiply
    12,122.36x = 18,184.30 × 4,224.56
  4. Step 4: Simplify right side
    12,122.36x = 76,820,666.41
  5. Step 5: Solve for x
    x = 76,820,666.41/12,122.36
  6. Step 6: Final answer
    x = 6,337.10

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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.