Home / 13,100.46-19,639.64-5,314.74

Finding the Fourth Proportional to 13,100.46, 19,639.64 and 5,314.74

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Solution

The fourth proportional to 13,100.46, 19,639.64 and 5,314.74 is: 7,967.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.46 : 19,639.64 = 5,314.74 : x
  2. Step 2: Convert to fraction form
    13,100.46/19,639.64 = 5,314.74/x
  3. Step 3: Cross multiply
    13,100.46x = 19,639.64 × 5,314.74
  4. Step 4: Simplify right side
    13,100.46x = 104,379,580.29
  5. Step 5: Solve for x
    x = 104,379,580.29/13,100.46
  6. Step 6: Final answer
    x = 7,967.63

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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.