Home / 11,161.90-16,742.85-8,698.56

Finding the Fourth Proportional to 11,161.90, 16,742.85 and 8,698.56

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Solution

The fourth proportional to 11,161.90, 16,742.85 and 8,698.56 is: 13,047.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.90 : 16,742.85 = 8,698.56 : x
  2. Step 2: Convert to fraction form
    11,161.90/16,742.85 = 8,698.56/x
  3. Step 3: Cross multiply
    11,161.90x = 16,742.85 × 8,698.56
  4. Step 4: Simplify right side
    11,161.90x = 145,638,685.30
  5. Step 5: Solve for x
    x = 145,638,685.30/11,161.90
  6. Step 6: Final answer
    x = 13,047.84

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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.