Home / 13,622.46-18,755.91-12,376.74

Finding the Fourth Proportional to 13,622.46, 18,755.91 and 12,376.74

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Solution

The fourth proportional to 13,622.46, 18,755.91 and 12,376.74 is: 17,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.46 : 18,755.91 = 12,376.74 : x
  2. Step 2: Convert to fraction form
    13,622.46/18,755.91 = 12,376.74/x
  3. Step 3: Cross multiply
    13,622.46x = 18,755.91 × 12,376.74
  4. Step 4: Simplify right side
    13,622.46x = 232,137,021.53
  5. Step 5: Solve for x
    x = 232,137,021.53/13,622.46
  6. Step 6: Final answer
    x = 17,040.76

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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.