Home / 10,543.86-15,817.41-3,521.70

Finding the Fourth Proportional to 10,543.86, 15,817.41 and 3,521.70

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Solution

The fourth proportional to 10,543.86, 15,817.41 and 3,521.70 is: 5,283.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,543.86 : 15,817.41 = 3,521.70 : x
  2. Step 2: Convert to fraction form
    10,543.86/15,817.41 = 3,521.70/x
  3. Step 3: Cross multiply
    10,543.86x = 15,817.41 × 3,521.70
  4. Step 4: Simplify right side
    10,543.86x = 55,704,172.80
  5. Step 5: Solve for x
    x = 55,704,172.80/10,543.86
  6. Step 6: Final answer
    x = 5,283.09

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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.