Home / 8,555.50-11,806.78-4,778.46

Finding the Fourth Proportional to 8,555.50, 11,806.78 and 4,778.46

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Solution

The fourth proportional to 8,555.50, 11,806.78 and 4,778.46 is: 6,594.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.50 : 11,806.78 = 4,778.46 : x
  2. Step 2: Convert to fraction form
    8,555.50/11,806.78 = 4,778.46/x
  3. Step 3: Cross multiply
    8,555.50x = 11,806.78 × 4,778.46
  4. Step 4: Simplify right side
    8,555.50x = 56,418,225.96
  5. Step 5: Solve for x
    x = 56,418,225.96/8,555.50
  6. Step 6: Final answer
    x = 6,594.38

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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.