Home / 13,136.28-19,669.14-8,196.12

Finding the Fourth Proportional to 13,136.28, 19,669.14 and 8,196.12

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Solution

The fourth proportional to 13,136.28, 19,669.14 and 8,196.12 is: 12,272.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.28 : 19,669.14 = 8,196.12 : x
  2. Step 2: Convert to fraction form
    13,136.28/19,669.14 = 8,196.12/x
  3. Step 3: Cross multiply
    13,136.28x = 19,669.14 × 8,196.12
  4. Step 4: Simplify right side
    13,136.28x = 161,210,631.74
  5. Step 5: Solve for x
    x = 161,210,631.74/13,136.28
  6. Step 6: Final answer
    x = 12,272.17

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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.