Home / 8,180.67-11,289.32-4,643.88

Finding the Fourth Proportional to 8,180.67, 11,289.32 and 4,643.88

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Solution

The fourth proportional to 8,180.67, 11,289.32 and 4,643.88 is: 6,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.67 : 11,289.32 = 4,643.88 : x
  2. Step 2: Convert to fraction form
    8,180.67/11,289.32 = 4,643.88/x
  3. Step 3: Cross multiply
    8,180.67x = 11,289.32 × 4,643.88
  4. Step 4: Simplify right side
    8,180.67x = 52,426,266.81
  5. Step 5: Solve for x
    x = 52,426,266.81/8,180.67
  6. Step 6: Final answer
    x = 6,408.55

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Half scale
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Double scale
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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.