Home / 11,722.18-17,582.11-6,455.47

Finding the Fourth Proportional to 11,722.18, 17,582.11 and 6,455.47

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Solution

The fourth proportional to 11,722.18, 17,582.11 and 6,455.47 is: 9,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.18 : 17,582.11 = 6,455.47 : x
  2. Step 2: Convert to fraction form
    11,722.18/17,582.11 = 6,455.47/x
  3. Step 3: Cross multiply
    11,722.18x = 17,582.11 × 6,455.47
  4. Step 4: Simplify right side
    11,722.18x = 113,500,783.64
  5. Step 5: Solve for x
    x = 113,500,783.64/11,722.18
  6. Step 6: Final answer
    x = 9,682.57

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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.