Home / 11,408.90-17,069.61-8,500.19

Finding the Fourth Proportional to 11,408.90, 17,069.61 and 8,500.19

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Solution

The fourth proportional to 11,408.90, 17,069.61 and 8,500.19 is: 12,717.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.90 : 17,069.61 = 8,500.19 : x
  2. Step 2: Convert to fraction form
    11,408.90/17,069.61 = 8,500.19/x
  3. Step 3: Cross multiply
    11,408.90x = 17,069.61 × 8,500.19
  4. Step 4: Simplify right side
    11,408.90x = 145,094,928.23
  5. Step 5: Solve for x
    x = 145,094,928.23/11,408.90
  6. Step 6: Final answer
    x = 12,717.70

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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.