Home / 11,420.85-17,138.57-4,406.52

Finding the Fourth Proportional to 11,420.85, 17,138.57 and 4,406.52

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Solution

The fourth proportional to 11,420.85, 17,138.57 and 4,406.52 is: 6,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.85 : 17,138.57 = 4,406.52 : x
  2. Step 2: Convert to fraction form
    11,420.85/17,138.57 = 4,406.52/x
  3. Step 3: Cross multiply
    11,420.85x = 17,138.57 × 4,406.52
  4. Step 4: Simplify right side
    11,420.85x = 75,521,518.50
  5. Step 5: Solve for x
    x = 75,521,518.50/11,420.85
  6. Step 6: Final answer
    x = 6,612.60

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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.