Home / 9,942.58-13,720.79-5,693.70

Finding the Fourth Proportional to 9,942.58, 13,720.79 and 5,693.70

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Solution

The fourth proportional to 9,942.58, 13,720.79 and 5,693.70 is: 7,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,942.58 : 13,720.79 = 5,693.70 : x
  2. Step 2: Convert to fraction form
    9,942.58/13,720.79 = 5,693.70/x
  3. Step 3: Cross multiply
    9,942.58x = 13,720.79 × 5,693.70
  4. Step 4: Simplify right side
    9,942.58x = 78,122,062.02
  5. Step 5: Solve for x
    x = 78,122,062.02/9,942.58
  6. Step 6: Final answer
    x = 7,857.32

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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.