Home / 11,380.49-15,700.74-8,403.47

Finding the Fourth Proportional to 11,380.49, 15,700.74 and 8,403.47

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Solution

The fourth proportional to 11,380.49, 15,700.74 and 8,403.47 is: 11,593.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,380.49 : 15,700.74 = 8,403.47 : x
  2. Step 2: Convert to fraction form
    11,380.49/15,700.74 = 8,403.47/x
  3. Step 3: Cross multiply
    11,380.49x = 15,700.74 × 8,403.47
  4. Step 4: Simplify right side
    11,380.49x = 131,940,697.57
  5. Step 5: Solve for x
    x = 131,940,697.57/11,380.49
  6. Step 6: Final answer
    x = 11,593.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.