Home / 7,419.64-11,135.91-4,651.72

Finding the Fourth Proportional to 7,419.64, 11,135.91 and 4,651.72

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Solution

The fourth proportional to 7,419.64, 11,135.91 and 4,651.72 is: 6,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.64 : 11,135.91 = 4,651.72 : x
  2. Step 2: Convert to fraction form
    7,419.64/11,135.91 = 4,651.72/x
  3. Step 3: Cross multiply
    7,419.64x = 11,135.91 × 4,651.72
  4. Step 4: Simplify right side
    7,419.64x = 51,801,135.27
  5. Step 5: Solve for x
    x = 51,801,135.27/7,419.64
  6. Step 6: Final answer
    x = 6,981.62

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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.