Home / 11,328.91-15,635.11-6,855.12

Finding the Fourth Proportional to 11,328.91, 15,635.11 and 6,855.12

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Solution

The fourth proportional to 11,328.91, 15,635.11 and 6,855.12 is: 9,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.91 : 15,635.11 = 6,855.12 : x
  2. Step 2: Convert to fraction form
    11,328.91/15,635.11 = 6,855.12/x
  3. Step 3: Cross multiply
    11,328.91x = 15,635.11 × 6,855.12
  4. Step 4: Simplify right side
    11,328.91x = 107,180,555.26
  5. Step 5: Solve for x
    x = 107,180,555.26/11,328.91
  6. Step 6: Final answer
    x = 9,460.80

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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.