Home / 11,617.27-16,031.77-6,312.09

Finding the Fourth Proportional to 11,617.27, 16,031.77 and 6,312.09

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Solution

The fourth proportional to 11,617.27, 16,031.77 and 6,312.09 is: 8,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,617.27 : 16,031.77 = 6,312.09 : x
  2. Step 2: Convert to fraction form
    11,617.27/16,031.77 = 6,312.09/x
  3. Step 3: Cross multiply
    11,617.27x = 16,031.77 × 6,312.09
  4. Step 4: Simplify right side
    11,617.27x = 101,193,975.10
  5. Step 5: Solve for x
    x = 101,193,975.10/11,617.27
  6. Step 6: Final answer
    x = 8,710.65

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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.