Home / 11,818.53-16,309.91-6,513.68

Finding the Fourth Proportional to 11,818.53, 16,309.91 and 6,513.68

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Solution

The fourth proportional to 11,818.53, 16,309.91 and 6,513.68 is: 8,989.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.53 : 16,309.91 = 6,513.68 : x
  2. Step 2: Convert to fraction form
    11,818.53/16,309.91 = 6,513.68/x
  3. Step 3: Cross multiply
    11,818.53x = 16,309.91 × 6,513.68
  4. Step 4: Simplify right side
    11,818.53x = 106,237,542.78
  5. Step 5: Solve for x
    x = 106,237,542.78/11,818.53
  6. Step 6: Final answer
    x = 8,989.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.