Home / 11,171.28-15,419.16-6,458.52

Finding the Fourth Proportional to 11,171.28, 15,419.16 and 6,458.52

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Solution

The fourth proportional to 11,171.28, 15,419.16 and 6,458.52 is: 8,914.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,171.28 : 15,419.16 = 6,458.52 : x
  2. Step 2: Convert to fraction form
    11,171.28/15,419.16 = 6,458.52/x
  3. Step 3: Cross multiply
    11,171.28x = 15,419.16 × 6,458.52
  4. Step 4: Simplify right side
    11,171.28x = 99,584,953.24
  5. Step 5: Solve for x
    x = 99,584,953.24/11,171.28
  6. Step 6: Final answer
    x = 8,914.37

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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.