Home / 11,421.60-17,129.12-4,401.06

Finding the Fourth Proportional to 11,421.60, 17,129.12 and 4,401.06

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Solution

The fourth proportional to 11,421.60, 17,129.12 and 4,401.06 is: 6,600.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,421.60 : 17,129.12 = 4,401.06 : x
  2. Step 2: Convert to fraction form
    11,421.60/17,129.12 = 4,401.06/x
  3. Step 3: Cross multiply
    11,421.60x = 17,129.12 × 4,401.06
  4. Step 4: Simplify right side
    11,421.60x = 75,386,262.86
  5. Step 5: Solve for x
    x = 75,386,262.86/11,421.60
  6. Step 6: Final answer
    x = 6,600.32

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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.