Home / 11,109.68-15,330.96-6,141.68

Finding the Fourth Proportional to 11,109.68, 15,330.96 and 6,141.68

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Solution

The fourth proportional to 11,109.68, 15,330.96 and 6,141.68 is: 8,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.68 : 15,330.96 = 6,141.68 : x
  2. Step 2: Convert to fraction form
    11,109.68/15,330.96 = 6,141.68/x
  3. Step 3: Cross multiply
    11,109.68x = 15,330.96 × 6,141.68
  4. Step 4: Simplify right side
    11,109.68x = 94,157,850.41
  5. Step 5: Solve for x
    x = 94,157,850.41/11,109.68
  6. Step 6: Final answer
    x = 8,475.30

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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.