Home / 9,364.70-12,923.10-5,115.60

Finding the Fourth Proportional to 9,364.70, 12,923.10 and 5,115.60

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Solution

The fourth proportional to 9,364.70, 12,923.10 and 5,115.60 is: 7,059.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,364.70 : 12,923.10 = 5,115.60 : x
  2. Step 2: Convert to fraction form
    9,364.70/12,923.10 = 5,115.60/x
  3. Step 3: Cross multiply
    9,364.70x = 12,923.10 × 5,115.60
  4. Step 4: Simplify right side
    9,364.70x = 66,109,410.36
  5. Step 5: Solve for x
    x = 66,109,410.36/9,364.70
  6. Step 6: Final answer
    x = 7,059.42

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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.