Home / 19,887.35-29,830.89-6,748.97

Finding the Fourth Proportional to 19,887.35, 29,830.89 and 6,748.97

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Solution

The fourth proportional to 19,887.35, 29,830.89 and 6,748.97 is: 10,123.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.35 : 29,830.89 = 6,748.97 : x
  2. Step 2: Convert to fraction form
    19,887.35/29,830.89 = 6,748.97/x
  3. Step 3: Cross multiply
    19,887.35x = 29,830.89 × 6,748.97
  4. Step 4: Simplify right side
    19,887.35x = 201,327,781.68
  5. Step 5: Solve for x
    x = 201,327,781.68/19,887.35
  6. Step 6: Final answer
    x = 10,123.41

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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.