Home / 9,349.39-12,901.78-5,157.64

Finding the Fourth Proportional to 9,349.39, 12,901.78 and 5,157.64

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Solution

The fourth proportional to 9,349.39, 12,901.78 and 5,157.64 is: 7,117.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,349.39 : 12,901.78 = 5,157.64 : x
  2. Step 2: Convert to fraction form
    9,349.39/12,901.78 = 5,157.64/x
  3. Step 3: Cross multiply
    9,349.39x = 12,901.78 × 5,157.64
  4. Step 4: Simplify right side
    9,349.39x = 66,542,736.60
  5. Step 5: Solve for x
    x = 66,542,736.60/9,349.39
  6. Step 6: Final answer
    x = 7,117.33

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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.