Home / 8,555.56-12,815.14-4,106.66

Finding the Fourth Proportional to 8,555.56, 12,815.14 and 4,106.66

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Solution

The fourth proportional to 8,555.56, 12,815.14 and 4,106.66 is: 6,151.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.56 : 12,815.14 = 4,106.66 : x
  2. Step 2: Convert to fraction form
    8,555.56/12,815.14 = 4,106.66/x
  3. Step 3: Cross multiply
    8,555.56x = 12,815.14 × 4,106.66
  4. Step 4: Simplify right side
    8,555.56x = 52,627,434.75
  5. Step 5: Solve for x
    x = 52,627,434.75/8,555.56
  6. Step 6: Final answer
    x = 6,151.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.