Home / 10,114.20-15,174.29-5,187.30

Finding the Fourth Proportional to 10,114.20, 15,174.29 and 5,187.30

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Solution

The fourth proportional to 10,114.20, 15,174.29 and 5,187.30 is: 7,782.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,114.20 : 15,174.29 = 5,187.30 : x
  2. Step 2: Convert to fraction form
    10,114.20/15,174.29 = 5,187.30/x
  3. Step 3: Cross multiply
    10,114.20x = 15,174.29 × 5,187.30
  4. Step 4: Simplify right side
    10,114.20x = 78,713,594.52
  5. Step 5: Solve for x
    x = 78,713,594.52/10,114.20
  6. Step 6: Final answer
    x = 7,782.48

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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.