Home / 19,666.08-27,136.85-11,168.15

Finding the Fourth Proportional to 19,666.08, 27,136.85 and 11,168.15

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Solution

The fourth proportional to 19,666.08, 27,136.85 and 11,168.15 is: 15,410.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.08 : 27,136.85 = 11,168.15 : x
  2. Step 2: Convert to fraction form
    19,666.08/27,136.85 = 11,168.15/x
  3. Step 3: Cross multiply
    19,666.08x = 27,136.85 × 11,168.15
  4. Step 4: Simplify right side
    19,666.08x = 303,068,219.80
  5. Step 5: Solve for x
    x = 303,068,219.80/19,666.08
  6. Step 6: Final answer
    x = 15,410.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.