Home / 11,612.17-17,420.32-3,715.40

Finding the Fourth Proportional to 11,612.17, 17,420.32 and 3,715.40

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Solution

The fourth proportional to 11,612.17, 17,420.32 and 3,715.40 is: 5,573.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,612.17 : 17,420.32 = 3,715.40 : x
  2. Step 2: Convert to fraction form
    11,612.17/17,420.32 = 3,715.40/x
  3. Step 3: Cross multiply
    11,612.17x = 17,420.32 × 3,715.40
  4. Step 4: Simplify right side
    11,612.17x = 64,723,505.12
  5. Step 5: Solve for x
    x = 64,723,505.12/11,612.17
  6. Step 6: Final answer
    x = 5,573.76

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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.