Home / 13,124.66-19,680.62-4,356.68

Finding the Fourth Proportional to 13,124.66, 19,680.62 and 4,356.68

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Solution

The fourth proportional to 13,124.66, 19,680.62 and 4,356.68 is: 6,532.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.66 : 19,680.62 = 4,356.68 : x
  2. Step 2: Convert to fraction form
    13,124.66/19,680.62 = 4,356.68/x
  3. Step 3: Cross multiply
    13,124.66x = 19,680.62 × 4,356.68
  4. Step 4: Simplify right side
    13,124.66x = 85,742,163.54
  5. Step 5: Solve for x
    x = 85,742,163.54/13,124.66
  6. Step 6: Final answer
    x = 6,532.91

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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.