Home / 12,858.48-19,294.92-7,021.44

Finding the Fourth Proportional to 12,858.48, 19,294.92 and 7,021.44

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Solution

The fourth proportional to 12,858.48, 19,294.92 and 7,021.44 is: 10,536.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.48 : 19,294.92 = 7,021.44 : x
  2. Step 2: Convert to fraction form
    12,858.48/19,294.92 = 7,021.44/x
  3. Step 3: Cross multiply
    12,858.48x = 19,294.92 × 7,021.44
  4. Step 4: Simplify right side
    12,858.48x = 135,478,123.08
  5. Step 5: Solve for x
    x = 135,478,123.08/12,858.48
  6. Step 6: Final answer
    x = 10,536.09

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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.