Home / 8,742.96-12,065.40-5,949.36

Finding the Fourth Proportional to 8,742.96, 12,065.40 and 5,949.36

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Solution

The fourth proportional to 8,742.96, 12,065.40 and 5,949.36 is: 8,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.96 : 12,065.40 = 5,949.36 : x
  2. Step 2: Convert to fraction form
    8,742.96/12,065.40 = 5,949.36/x
  3. Step 3: Cross multiply
    8,742.96x = 12,065.40 × 5,949.36
  4. Step 4: Simplify right side
    8,742.96x = 71,781,408.14
  5. Step 5: Solve for x
    x = 71,781,408.14/8,742.96
  6. Step 6: Final answer
    x = 8,210.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.