Home / 19,189.34-28,781.66-5,150.47

Finding the Fourth Proportional to 19,189.34, 28,781.66 and 5,150.47

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Solution

The fourth proportional to 19,189.34, 28,781.66 and 5,150.47 is: 7,725.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.34 : 28,781.66 = 5,150.47 : x
  2. Step 2: Convert to fraction form
    19,189.34/28,781.66 = 5,150.47/x
  3. Step 3: Cross multiply
    19,189.34x = 28,781.66 × 5,150.47
  4. Step 4: Simplify right side
    19,189.34x = 148,239,076.38
  5. Step 5: Solve for x
    x = 148,239,076.38/19,189.34
  6. Step 6: Final answer
    x = 7,725.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.