Home / 13,411.20-20,103.84-4,639.52

Finding the Fourth Proportional to 13,411.20, 20,103.84 and 4,639.52

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Solution

The fourth proportional to 13,411.20, 20,103.84 and 4,639.52 is: 6,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.20 : 20,103.84 = 4,639.52 : x
  2. Step 2: Convert to fraction form
    13,411.20/20,103.84 = 4,639.52/x
  3. Step 3: Cross multiply
    13,411.20x = 20,103.84 × 4,639.52
  4. Step 4: Simplify right side
    13,411.20x = 93,272,167.76
  5. Step 5: Solve for x
    x = 93,272,167.76/13,411.20
  6. Step 6: Final answer
    x = 6,954.80

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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.