Home / 11,181.13-15,429.96-6,465.71

Finding the Fourth Proportional to 11,181.13, 15,429.96 and 6,465.71

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Solution

The fourth proportional to 11,181.13, 15,429.96 and 6,465.71 is: 8,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.13 : 15,429.96 = 6,465.71 : x
  2. Step 2: Convert to fraction form
    11,181.13/15,429.96 = 6,465.71/x
  3. Step 3: Cross multiply
    11,181.13x = 15,429.96 × 6,465.71
  4. Step 4: Simplify right side
    11,181.13x = 99,765,646.67
  5. Step 5: Solve for x
    x = 99,765,646.67/11,181.13
  6. Step 6: Final answer
    x = 8,922.68

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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.