Home / 10,123.51-15,187.07-3,103.38

Finding the Fourth Proportional to 10,123.51, 15,187.07 and 3,103.38

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Solution

The fourth proportional to 10,123.51, 15,187.07 and 3,103.38 is: 4,655.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.51 : 15,187.07 = 3,103.38 : x
  2. Step 2: Convert to fraction form
    10,123.51/15,187.07 = 3,103.38/x
  3. Step 3: Cross multiply
    10,123.51x = 15,187.07 × 3,103.38
  4. Step 4: Simplify right side
    10,123.51x = 47,131,249.30
  5. Step 5: Solve for x
    x = 47,131,249.30/10,123.51
  6. Step 6: Final answer
    x = 4,655.62

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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.