Home / 11,435.52-17,156.12-8,140.44

Finding the Fourth Proportional to 11,435.52, 17,156.12 and 8,140.44

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Solution

The fourth proportional to 11,435.52, 17,156.12 and 8,140.44 is: 12,212.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,435.52 : 17,156.12 = 8,140.44 : x
  2. Step 2: Convert to fraction form
    11,435.52/17,156.12 = 8,140.44/x
  3. Step 3: Cross multiply
    11,435.52x = 17,156.12 × 8,140.44
  4. Step 4: Simplify right side
    11,435.52x = 139,658,365.49
  5. Step 5: Solve for x
    x = 139,658,365.49/11,435.52
  6. Step 6: Final answer
    x = 12,212.68

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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.