Home / 11,265.60-16,901.76-5,422.40

Finding the Fourth Proportional to 11,265.60, 16,901.76 and 5,422.40

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Solution

The fourth proportional to 11,265.60, 16,901.76 and 5,422.40 is: 8,135.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,265.60 : 16,901.76 = 5,422.40 : x
  2. Step 2: Convert to fraction form
    11,265.60/16,901.76 = 5,422.40/x
  3. Step 3: Cross multiply
    11,265.60x = 16,901.76 × 5,422.40
  4. Step 4: Simplify right side
    11,265.60x = 91,648,103.42
  5. Step 5: Solve for x
    x = 91,648,103.42/11,265.60
  6. Step 6: Final answer
    x = 8,135.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.