Home / 8,289.16-12,435.61-2,742.49

Finding the Fourth Proportional to 8,289.16, 12,435.61 and 2,742.49

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Solution

The fourth proportional to 8,289.16, 12,435.61 and 2,742.49 is: 4,114.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.16 : 12,435.61 = 2,742.49 : x
  2. Step 2: Convert to fraction form
    8,289.16/12,435.61 = 2,742.49/x
  3. Step 3: Cross multiply
    8,289.16x = 12,435.61 × 2,742.49
  4. Step 4: Simplify right side
    8,289.16x = 34,104,498.12
  5. Step 5: Solve for x
    x = 34,104,498.12/8,289.16
  6. Step 6: Final answer
    x = 4,114.35

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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.