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Finding the Fourth Proportional to 14,057.01, 19,398.60 and 7,769.39

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Solution

The fourth proportional to 14,057.01, 19,398.60 and 7,769.39 is: 10,721.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,057.01 : 19,398.60 = 7,769.39 : x
  2. Step 2: Convert to fraction form
    14,057.01/19,398.60 = 7,769.39/x
  3. Step 3: Cross multiply
    14,057.01x = 19,398.60 × 7,769.39
  4. Step 4: Simplify right side
    14,057.01x = 150,715,191.86
  5. Step 5: Solve for x
    x = 150,715,191.86/14,057.01
  6. Step 6: Final answer
    x = 10,721.71

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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.