Home / 8,162.32-11,266.16-5,641.60

Finding the Fourth Proportional to 8,162.32, 11,266.16 and 5,641.60

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Solution

The fourth proportional to 8,162.32, 11,266.16 and 5,641.60 is: 7,786.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.32 : 11,266.16 = 5,641.60 : x
  2. Step 2: Convert to fraction form
    8,162.32/11,266.16 = 5,641.60/x
  3. Step 3: Cross multiply
    8,162.32x = 11,266.16 × 5,641.60
  4. Step 4: Simplify right side
    8,162.32x = 63,559,168.26
  5. Step 5: Solve for x
    x = 63,559,168.26/8,162.32
  6. Step 6: Final answer
    x = 7,786.90

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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.