Home / 8,989.08-13,485.48-2,748.72

Finding the Fourth Proportional to 8,989.08, 13,485.48 and 2,748.72

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Solution

The fourth proportional to 8,989.08, 13,485.48 and 2,748.72 is: 4,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.08 : 13,485.48 = 2,748.72 : x
  2. Step 2: Convert to fraction form
    8,989.08/13,485.48 = 2,748.72/x
  3. Step 3: Cross multiply
    8,989.08x = 13,485.48 × 2,748.72
  4. Step 4: Simplify right side
    8,989.08x = 37,067,808.59
  5. Step 5: Solve for x
    x = 37,067,808.59/8,989.08
  6. Step 6: Final answer
    x = 4,123.65

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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.