Home / 11,404.08-15,742.08-6,928.56

Finding the Fourth Proportional to 11,404.08, 15,742.08 and 6,928.56

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Solution

The fourth proportional to 11,404.08, 15,742.08 and 6,928.56 is: 9,564.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,404.08 : 15,742.08 = 6,928.56 : x
  2. Step 2: Convert to fraction form
    11,404.08/15,742.08 = 6,928.56/x
  3. Step 3: Cross multiply
    11,404.08x = 15,742.08 × 6,928.56
  4. Step 4: Simplify right side
    11,404.08x = 109,069,945.80
  5. Step 5: Solve for x
    x = 109,069,945.80/11,404.08
  6. Step 6: Final answer
    x = 9,564.12

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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.