Home / 8,240.42-11,360.76-6,818.87

Finding the Fourth Proportional to 8,240.42, 11,360.76 and 6,818.87

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Solution

The fourth proportional to 8,240.42, 11,360.76 and 6,818.87 is: 9,400.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.42 : 11,360.76 = 6,818.87 : x
  2. Step 2: Convert to fraction form
    8,240.42/11,360.76 = 6,818.87/x
  3. Step 3: Cross multiply
    8,240.42x = 11,360.76 × 6,818.87
  4. Step 4: Simplify right side
    8,240.42x = 77,467,488.74
  5. Step 5: Solve for x
    x = 77,467,488.74/8,240.42
  6. Step 6: Final answer
    x = 9,400.92

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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.