Home / 12,174.24-18,261.36-5,605.20

Finding the Fourth Proportional to 12,174.24, 18,261.36 and 5,605.20

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Solution

The fourth proportional to 12,174.24, 18,261.36 and 5,605.20 is: 8,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.24 : 18,261.36 = 5,605.20 : x
  2. Step 2: Convert to fraction form
    12,174.24/18,261.36 = 5,605.20/x
  3. Step 3: Cross multiply
    12,174.24x = 18,261.36 × 5,605.20
  4. Step 4: Simplify right side
    12,174.24x = 102,358,575.07
  5. Step 5: Solve for x
    x = 102,358,575.07/12,174.24
  6. Step 6: Final answer
    x = 8,407.80

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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.