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Finding the Fourth Proportional to 12,589.88, 17,372.12 and 7,283.67

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Solution

The fourth proportional to 12,589.88, 17,372.12 and 7,283.67 is: 10,050.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.88 : 17,372.12 = 7,283.67 : x
  2. Step 2: Convert to fraction form
    12,589.88/17,372.12 = 7,283.67/x
  3. Step 3: Cross multiply
    12,589.88x = 17,372.12 × 7,283.67
  4. Step 4: Simplify right side
    12,589.88x = 126,532,826.41
  5. Step 5: Solve for x
    x = 126,532,826.41/12,589.88
  6. Step 6: Final answer
    x = 10,050.36

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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.