Home / 11,085.48-15,305.16-8,563.20

Finding the Fourth Proportional to 11,085.48, 15,305.16 and 8,563.20

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Solution

The fourth proportional to 11,085.48, 15,305.16 and 8,563.20 is: 11,822.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,085.48 : 15,305.16 = 8,563.20 : x
  2. Step 2: Convert to fraction form
    11,085.48/15,305.16 = 8,563.20/x
  3. Step 3: Cross multiply
    11,085.48x = 15,305.16 × 8,563.20
  4. Step 4: Simplify right side
    11,085.48x = 131,061,146.11
  5. Step 5: Solve for x
    x = 131,061,146.11/11,085.48
  6. Step 6: Final answer
    x = 11,822.78

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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.