Home / 11,173.32-15,426.40-6,928.90

Finding the Fourth Proportional to 11,173.32, 15,426.40 and 6,928.90

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Solution

The fourth proportional to 11,173.32, 15,426.40 and 6,928.90 is: 9,566.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.32 : 15,426.40 = 6,928.90 : x
  2. Step 2: Convert to fraction form
    11,173.32/15,426.40 = 6,928.90/x
  3. Step 3: Cross multiply
    11,173.32x = 15,426.40 × 6,928.90
  4. Step 4: Simplify right side
    11,173.32x = 106,887,982.96
  5. Step 5: Solve for x
    x = 106,887,982.96/11,173.32
  6. Step 6: Final answer
    x = 9,566.36

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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.