Home / 16,780.53-25,148.10-6,386.61

Finding the Fourth Proportional to 16,780.53, 25,148.10 and 6,386.61

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Solution

The fourth proportional to 16,780.53, 25,148.10 and 6,386.61 is: 9,571.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,780.53 : 25,148.10 = 6,386.61 : x
  2. Step 2: Convert to fraction form
    16,780.53/25,148.10 = 6,386.61/x
  3. Step 3: Cross multiply
    16,780.53x = 25,148.10 × 6,386.61
  4. Step 4: Simplify right side
    16,780.53x = 160,611,106.94
  5. Step 5: Solve for x
    x = 160,611,106.94/16,780.53
  6. Step 6: Final answer
    x = 9,571.28

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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.