Home / 12,156.24-18,235.44-4,761.24

Finding the Fourth Proportional to 12,156.24, 18,235.44 and 4,761.24

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Solution

The fourth proportional to 12,156.24, 18,235.44 and 4,761.24 is: 7,142.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.24 : 18,235.44 = 4,761.24 : x
  2. Step 2: Convert to fraction form
    12,156.24/18,235.44 = 4,761.24/x
  3. Step 3: Cross multiply
    12,156.24x = 18,235.44 × 4,761.24
  4. Step 4: Simplify right side
    12,156.24x = 86,823,306.35
  5. Step 5: Solve for x
    x = 86,823,306.35/12,156.24
  6. Step 6: Final answer
    x = 7,142.28

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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.