Home / 8,555.39-12,833.53-2,712.45

Finding the Fourth Proportional to 8,555.39, 12,833.53 and 2,712.45

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Solution

The fourth proportional to 8,555.39, 12,833.53 and 2,712.45 is: 4,068.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.39 : 12,833.53 = 2,712.45 : x
  2. Step 2: Convert to fraction form
    8,555.39/12,833.53 = 2,712.45/x
  3. Step 3: Cross multiply
    8,555.39x = 12,833.53 × 2,712.45
  4. Step 4: Simplify right side
    8,555.39x = 34,810,308.45
  5. Step 5: Solve for x
    x = 34,810,308.45/8,555.39
  6. Step 6: Final answer
    x = 4,068.82

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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.