Home / 19,677.68-27,154.56-11,180.48

Finding the Fourth Proportional to 19,677.68, 27,154.56 and 11,180.48

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Solution

The fourth proportional to 19,677.68, 27,154.56 and 11,180.48 is: 15,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,677.68 : 27,154.56 = 11,180.48 : x
  2. Step 2: Convert to fraction form
    19,677.68/27,154.56 = 11,180.48/x
  3. Step 3: Cross multiply
    19,677.68x = 27,154.56 × 11,180.48
  4. Step 4: Simplify right side
    19,677.68x = 303,601,014.99
  5. Step 5: Solve for x
    x = 303,601,014.99/19,677.68
  6. Step 6: Final answer
    x = 15,428.70

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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.