Home / 11,085.20-15,297.84-6,305.92

Finding the Fourth Proportional to 11,085.20, 15,297.84 and 6,305.92

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Solution

The fourth proportional to 11,085.20, 15,297.84 and 6,305.92 is: 8,702.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,085.20 : 15,297.84 = 6,305.92 : x
  2. Step 2: Convert to fraction form
    11,085.20/15,297.84 = 6,305.92/x
  3. Step 3: Cross multiply
    11,085.20x = 15,297.84 × 6,305.92
  4. Step 4: Simplify right side
    11,085.20x = 96,466,955.21
  5. Step 5: Solve for x
    x = 96,466,955.21/11,085.20
  6. Step 6: Final answer
    x = 8,702.32

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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.