Home / 10,756.24-16,121.40-4,904.80

Finding the Fourth Proportional to 10,756.24, 16,121.40 and 4,904.80

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Solution

The fourth proportional to 10,756.24, 16,121.40 and 4,904.80 is: 7,351.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,756.24 : 16,121.40 = 4,904.80 : x
  2. Step 2: Convert to fraction form
    10,756.24/16,121.40 = 4,904.80/x
  3. Step 3: Cross multiply
    10,756.24x = 16,121.40 × 4,904.80
  4. Step 4: Simplify right side
    10,756.24x = 79,072,242.72
  5. Step 5: Solve for x
    x = 79,072,242.72/10,756.24
  6. Step 6: Final answer
    x = 7,351.29

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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.