Home / 11,331.21-15,636.61-6,295.74

Finding the Fourth Proportional to 11,331.21, 15,636.61 and 6,295.74

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Solution

The fourth proportional to 11,331.21, 15,636.61 and 6,295.74 is: 8,687.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.21 : 15,636.61 = 6,295.74 : x
  2. Step 2: Convert to fraction form
    11,331.21/15,636.61 = 6,295.74/x
  3. Step 3: Cross multiply
    11,331.21x = 15,636.61 × 6,295.74
  4. Step 4: Simplify right side
    11,331.21x = 98,444,031.04
  5. Step 5: Solve for x
    x = 98,444,031.04/11,331.21
  6. Step 6: Final answer
    x = 8,687.87

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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.