Home / 19,818.52-27,350.21-11,318.84

Finding the Fourth Proportional to 19,818.52, 27,350.21 and 11,318.84

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Solution

The fourth proportional to 19,818.52, 27,350.21 and 11,318.84 is: 15,620.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.52 : 27,350.21 = 11,318.84 : x
  2. Step 2: Convert to fraction form
    19,818.52/27,350.21 = 11,318.84/x
  3. Step 3: Cross multiply
    19,818.52x = 27,350.21 × 11,318.84
  4. Step 4: Simplify right side
    19,818.52x = 309,572,581.40
  5. Step 5: Solve for x
    x = 309,572,581.40/19,818.52
  6. Step 6: Final answer
    x = 15,620.37

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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.