Home / 10,864.20-16,285.32-6,483.72

Finding the Fourth Proportional to 10,864.20, 16,285.32 and 6,483.72

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Solution

The fourth proportional to 10,864.20, 16,285.32 and 6,483.72 is: 9,719.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,864.20 : 16,285.32 = 6,483.72 : x
  2. Step 2: Convert to fraction form
    10,864.20/16,285.32 = 6,483.72/x
  3. Step 3: Cross multiply
    10,864.20x = 16,285.32 × 6,483.72
  4. Step 4: Simplify right side
    10,864.20x = 105,589,454.99
  5. Step 5: Solve for x
    x = 105,589,454.99/10,864.20
  6. Step 6: Final answer
    x = 9,719.03

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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.