Home / 8,236.08-11,355.84-5,720.32

Finding the Fourth Proportional to 8,236.08, 11,355.84 and 5,720.32

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Solution

The fourth proportional to 8,236.08, 11,355.84 and 5,720.32 is: 7,887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.08 : 11,355.84 = 5,720.32 : x
  2. Step 2: Convert to fraction form
    8,236.08/11,355.84 = 5,720.32/x
  3. Step 3: Cross multiply
    8,236.08x = 11,355.84 × 5,720.32
  4. Step 4: Simplify right side
    8,236.08x = 64,959,038.67
  5. Step 5: Solve for x
    x = 64,959,038.67/8,236.08
  6. Step 6: Final answer
    x = 7,887.13

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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.