Home / 14,174.19-21,261.33-5,415.21

Finding the Fourth Proportional to 14,174.19, 21,261.33 and 5,415.21

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Solution

The fourth proportional to 14,174.19, 21,261.33 and 5,415.21 is: 8,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,174.19 : 21,261.33 = 5,415.21 : x
  2. Step 2: Convert to fraction form
    14,174.19/21,261.33 = 5,415.21/x
  3. Step 3: Cross multiply
    14,174.19x = 21,261.33 × 5,415.21
  4. Step 4: Simplify right side
    14,174.19x = 115,134,566.83
  5. Step 5: Solve for x
    x = 115,134,566.83/14,174.19
  6. Step 6: Final answer
    x = 8,122.83

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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.