Home / 8,129.61-11,218.73-4,544.62

Finding the Fourth Proportional to 8,129.61, 11,218.73 and 4,544.62

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Solution

The fourth proportional to 8,129.61, 11,218.73 and 4,544.62 is: 6,271.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.61 : 11,218.73 = 4,544.62 : x
  2. Step 2: Convert to fraction form
    8,129.61/11,218.73 = 4,544.62/x
  3. Step 3: Cross multiply
    8,129.61x = 11,218.73 × 4,544.62
  4. Step 4: Simplify right side
    8,129.61x = 50,984,864.73
  5. Step 5: Solve for x
    x = 50,984,864.73/8,129.61
  6. Step 6: Final answer
    x = 6,271.50

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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.