Home / 8,606.78-12,911.37-2,765.18

Finding the Fourth Proportional to 8,606.78, 12,911.37 and 2,765.18

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Solution

The fourth proportional to 8,606.78, 12,911.37 and 2,765.18 is: 4,148.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.78 : 12,911.37 = 2,765.18 : x
  2. Step 2: Convert to fraction form
    8,606.78/12,911.37 = 2,765.18/x
  3. Step 3: Cross multiply
    8,606.78x = 12,911.37 × 2,765.18
  4. Step 4: Simplify right side
    8,606.78x = 35,702,262.10
  5. Step 5: Solve for x
    x = 35,702,262.10/8,606.78
  6. Step 6: Final answer
    x = 4,148.16

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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.