Home / 10,503.99-15,756.39-2,712.80

Finding the Fourth Proportional to 10,503.99, 15,756.39 and 2,712.80

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Solution

The fourth proportional to 10,503.99, 15,756.39 and 2,712.80 is: 4,069.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,503.99 : 15,756.39 = 2,712.80 : x
  2. Step 2: Convert to fraction form
    10,503.99/15,756.39 = 2,712.80/x
  3. Step 3: Cross multiply
    10,503.99x = 15,756.39 × 2,712.80
  4. Step 4: Simplify right side
    10,503.99x = 42,743,974.18
  5. Step 5: Solve for x
    x = 42,743,974.18/10,503.99
  6. Step 6: Final answer
    x = 4,069.31

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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.