Home / 8,530.88-12,799.20-2,688.32

Finding the Fourth Proportional to 8,530.88, 12,799.20 and 2,688.32

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Solution

The fourth proportional to 8,530.88, 12,799.20 and 2,688.32 is: 4,033.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.88 : 12,799.20 = 2,688.32 : x
  2. Step 2: Convert to fraction form
    8,530.88/12,799.20 = 2,688.32/x
  3. Step 3: Cross multiply
    8,530.88x = 12,799.20 × 2,688.32
  4. Step 4: Simplify right side
    8,530.88x = 34,408,345.34
  5. Step 5: Solve for x
    x = 34,408,345.34/8,530.88
  6. Step 6: Final answer
    x = 4,033.39

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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.