Home / 9,287.73-12,816.85-5,308.60

Finding the Fourth Proportional to 9,287.73, 12,816.85 and 5,308.60

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Solution

The fourth proportional to 9,287.73, 12,816.85 and 5,308.60 is: 7,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,287.73 : 12,816.85 = 5,308.60 : x
  2. Step 2: Convert to fraction form
    9,287.73/12,816.85 = 5,308.60/x
  3. Step 3: Cross multiply
    9,287.73x = 12,816.85 × 5,308.60
  4. Step 4: Simplify right side
    9,287.73x = 68,039,503.37
  5. Step 5: Solve for x
    x = 68,039,503.37/9,287.73
  6. Step 6: Final answer
    x = 7,325.74

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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.