Home / 19,813.68-27,343.25-10,861.11

Finding the Fourth Proportional to 19,813.68, 27,343.25 and 10,861.11

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Solution

The fourth proportional to 19,813.68, 27,343.25 and 10,861.11 is: 14,988.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.68 : 27,343.25 = 10,861.11 : x
  2. Step 2: Convert to fraction form
    19,813.68/27,343.25 = 10,861.11/x
  3. Step 3: Cross multiply
    19,813.68x = 27,343.25 × 10,861.11
  4. Step 4: Simplify right side
    19,813.68x = 296,977,991.70
  5. Step 5: Solve for x
    x = 296,977,991.70/19,813.68
  6. Step 6: Final answer
    x = 14,988.53

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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.