Home / 8,064.40-11,128.70-4,528.76

Finding the Fourth Proportional to 8,064.40, 11,128.70 and 4,528.76

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Solution

The fourth proportional to 8,064.40, 11,128.70 and 4,528.76 is: 6,249.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,064.40 : 11,128.70 = 4,528.76 : x
  2. Step 2: Convert to fraction form
    8,064.40/11,128.70 = 4,528.76/x
  3. Step 3: Cross multiply
    8,064.40x = 11,128.70 × 4,528.76
  4. Step 4: Simplify right side
    8,064.40x = 50,399,211.41
  5. Step 5: Solve for x
    x = 50,399,211.41/8,064.40
  6. Step 6: Final answer
    x = 6,249.59

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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.