Home / 11,171.44-15,416.76-6,456.40

Finding the Fourth Proportional to 11,171.44, 15,416.76 and 6,456.40

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Solution

The fourth proportional to 11,171.44, 15,416.76 and 6,456.40 is: 8,909.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,171.44 : 15,416.76 = 6,456.40 : x
  2. Step 2: Convert to fraction form
    11,171.44/15,416.76 = 6,456.40/x
  3. Step 3: Cross multiply
    11,171.44x = 15,416.76 × 6,456.40
  4. Step 4: Simplify right side
    11,171.44x = 99,536,769.26
  5. Step 5: Solve for x
    x = 99,536,769.26/11,171.44
  6. Step 6: Final answer
    x = 8,909.93

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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.