Home / 15,736.20-21,704.54-10,691.60

Finding the Fourth Proportional to 15,736.20, 21,704.54 and 10,691.60

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Solution

The fourth proportional to 15,736.20, 21,704.54 and 10,691.60 is: 14,746.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,736.20 : 21,704.54 = 10,691.60 : x
  2. Step 2: Convert to fraction form
    15,736.20/21,704.54 = 10,691.60/x
  3. Step 3: Cross multiply
    15,736.20x = 21,704.54 × 10,691.60
  4. Step 4: Simplify right side
    15,736.20x = 232,056,259.86
  5. Step 5: Solve for x
    x = 232,056,259.86/15,736.20
  6. Step 6: Final answer
    x = 14,746.65

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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.