Home / 8,129.77-11,218.93-4,544.78

Finding the Fourth Proportional to 8,129.77, 11,218.93 and 4,544.78

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Solution

The fourth proportional to 8,129.77, 11,218.93 and 4,544.78 is: 6,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.77 : 11,218.93 = 4,544.78 : x
  2. Step 2: Convert to fraction form
    8,129.77/11,218.93 = 4,544.78/x
  3. Step 3: Cross multiply
    8,129.77x = 11,218.93 × 4,544.78
  4. Step 4: Simplify right side
    8,129.77x = 50,987,501.23
  5. Step 5: Solve for x
    x = 50,987,501.23/8,129.77
  6. Step 6: Final answer
    x = 6,271.70

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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.