Home / 11,412.20-17,084.70-8,503.40

Finding the Fourth Proportional to 11,412.20, 17,084.70 and 8,503.40

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Solution

The fourth proportional to 11,412.20, 17,084.70 and 8,503.40 is: 12,730.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,412.20 : 17,084.70 = 8,503.40 : x
  2. Step 2: Convert to fraction form
    11,412.20/17,084.70 = 8,503.40/x
  3. Step 3: Cross multiply
    11,412.20x = 17,084.70 × 8,503.40
  4. Step 4: Simplify right side
    11,412.20x = 145,278,037.98
  5. Step 5: Solve for x
    x = 145,278,037.98/11,412.20
  6. Step 6: Final answer
    x = 12,730.06

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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.