Home / 9,438.30-13,025.58-5,661.60

Finding the Fourth Proportional to 9,438.30, 13,025.58 and 5,661.60

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Solution

The fourth proportional to 9,438.30, 13,025.58 and 5,661.60 is: 7,813.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.30 : 13,025.58 = 5,661.60 : x
  2. Step 2: Convert to fraction form
    9,438.30/13,025.58 = 5,661.60/x
  3. Step 3: Cross multiply
    9,438.30x = 13,025.58 × 5,661.60
  4. Step 4: Simplify right side
    9,438.30x = 73,745,623.73
  5. Step 5: Solve for x
    x = 73,745,623.73/9,438.30
  6. Step 6: Final answer
    x = 7,813.44

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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.