Home / 12,462.90-18,682.20-11,150.70

Finding the Fourth Proportional to 12,462.90, 18,682.20 and 11,150.70

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Solution

The fourth proportional to 12,462.90, 18,682.20 and 11,150.70 is: 16,715.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462.90 : 18,682.20 = 11,150.70 : x
  2. Step 2: Convert to fraction form
    12,462.90/18,682.20 = 11,150.70/x
  3. Step 3: Cross multiply
    12,462.90x = 18,682.20 × 11,150.70
  4. Step 4: Simplify right side
    12,462.90x = 208,319,607.54
  5. Step 5: Solve for x
    x = 208,319,607.54/12,462.90
  6. Step 6: Final answer
    x = 16,715.18

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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.