Home / 12,136.34-18,204.57-4,238.81

Finding the Fourth Proportional to 12,136.34, 18,204.57 and 4,238.81

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Solution

The fourth proportional to 12,136.34, 18,204.57 and 4,238.81 is: 6,358.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.34 : 18,204.57 = 4,238.81 : x
  2. Step 2: Convert to fraction form
    12,136.34/18,204.57 = 4,238.81/x
  3. Step 3: Cross multiply
    12,136.34x = 18,204.57 × 4,238.81
  4. Step 4: Simplify right side
    12,136.34x = 77,165,713.36
  5. Step 5: Solve for x
    x = 77,165,713.36/12,136.34
  6. Step 6: Final answer
    x = 6,358.24

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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.