Home / 10,830.20-16,235.81-5,205.07

Finding the Fourth Proportional to 10,830.20, 16,235.81 and 5,205.07

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Solution

The fourth proportional to 10,830.20, 16,235.81 and 5,205.07 is: 7,803.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,830.20 : 16,235.81 = 5,205.07 : x
  2. Step 2: Convert to fraction form
    10,830.20/16,235.81 = 5,205.07/x
  3. Step 3: Cross multiply
    10,830.20x = 16,235.81 × 5,205.07
  4. Step 4: Simplify right side
    10,830.20x = 84,508,420.35
  5. Step 5: Solve for x
    x = 84,508,420.35/10,830.20
  6. Step 6: Final answer
    x = 7,803.03

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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.