Home / 8,989.67-13,485.31-2,415.71

Finding the Fourth Proportional to 8,989.67, 13,485.31 and 2,415.71

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Solution

The fourth proportional to 8,989.67, 13,485.31 and 2,415.71 is: 3,623.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.67 : 13,485.31 = 2,415.71 : x
  2. Step 2: Convert to fraction form
    8,989.67/13,485.31 = 2,415.71/x
  3. Step 3: Cross multiply
    8,989.67x = 13,485.31 × 2,415.71
  4. Step 4: Simplify right side
    8,989.67x = 32,576,530.79
  5. Step 5: Solve for x
    x = 32,576,530.79/8,989.67
  6. Step 6: Final answer
    x = 3,623.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.