Home / 10,171.82-15,248.10-7,669.12

Finding the Fourth Proportional to 10,171.82, 15,248.10 and 7,669.12

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Solution

The fourth proportional to 10,171.82, 15,248.10 and 7,669.12 is: 11,496.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,171.82 : 15,248.10 = 7,669.12 : x
  2. Step 2: Convert to fraction form
    10,171.82/15,248.10 = 7,669.12/x
  3. Step 3: Cross multiply
    10,171.82x = 15,248.10 × 7,669.12
  4. Step 4: Simplify right side
    10,171.82x = 116,939,432.43
  5. Step 5: Solve for x
    x = 116,939,432.43/10,171.82
  6. Step 6: Final answer
    x = 11,496.42

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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.