Home / 10,174.05-15,261.23-2,779.11

Finding the Fourth Proportional to 10,174.05, 15,261.23 and 2,779.11

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Solution

The fourth proportional to 10,174.05, 15,261.23 and 2,779.11 is: 4,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,174.05 : 15,261.23 = 2,779.11 : x
  2. Step 2: Convert to fraction form
    10,174.05/15,261.23 = 2,779.11/x
  3. Step 3: Cross multiply
    10,174.05x = 15,261.23 × 2,779.11
  4. Step 4: Simplify right side
    10,174.05x = 42,412,643.85
  5. Step 5: Solve for x
    x = 42,412,643.85/10,174.05
  6. Step 6: Final answer
    x = 4,168.71

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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.