Home / 11,434.50-17,135.28-8,300.88

Finding the Fourth Proportional to 11,434.50, 17,135.28 and 8,300.88

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Solution

The fourth proportional to 11,434.50, 17,135.28 and 8,300.88 is: 12,439.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.50 : 17,135.28 = 8,300.88 : x
  2. Step 2: Convert to fraction form
    11,434.50/17,135.28 = 8,300.88/x
  3. Step 3: Cross multiply
    11,434.50x = 17,135.28 × 8,300.88
  4. Step 4: Simplify right side
    11,434.50x = 142,237,903.05
  5. Step 5: Solve for x
    x = 142,237,903.05/11,434.50
  6. Step 6: Final answer
    x = 12,439.36

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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.