Home / 19,640.52-27,104.20-10,688.04

Finding the Fourth Proportional to 19,640.52, 27,104.20 and 10,688.04

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Solution

The fourth proportional to 19,640.52, 27,104.20 and 10,688.04 is: 14,749.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.52 : 27,104.20 = 10,688.04 : x
  2. Step 2: Convert to fraction form
    19,640.52/27,104.20 = 10,688.04/x
  3. Step 3: Cross multiply
    19,640.52x = 27,104.20 × 10,688.04
  4. Step 4: Simplify right side
    19,640.52x = 289,690,747.05
  5. Step 5: Solve for x
    x = 289,690,747.05/19,640.52
  6. Step 6: Final answer
    x = 14,749.65

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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.