Home / 13,049.10-17,989.74-8,740.44

Finding the Fourth Proportional to 13,049.10, 17,989.74 and 8,740.44

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Solution

The fourth proportional to 13,049.10, 17,989.74 and 8,740.44 is: 12,049.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.10 : 17,989.74 = 8,740.44 : x
  2. Step 2: Convert to fraction form
    13,049.10/17,989.74 = 8,740.44/x
  3. Step 3: Cross multiply
    13,049.10x = 17,989.74 × 8,740.44
  4. Step 4: Simplify right side
    13,049.10x = 157,238,243.09
  5. Step 5: Solve for x
    x = 157,238,243.09/13,049.10
  6. Step 6: Final answer
    x = 12,049.74

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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.