Home / 10,533.20-15,795.12-3,869.72

Finding the Fourth Proportional to 10,533.20, 15,795.12 and 3,869.72

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Solution

The fourth proportional to 10,533.20, 15,795.12 and 3,869.72 is: 5,802.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,533.20 : 15,795.12 = 3,869.72 : x
  2. Step 2: Convert to fraction form
    10,533.20/15,795.12 = 3,869.72/x
  3. Step 3: Cross multiply
    10,533.20x = 15,795.12 × 3,869.72
  4. Step 4: Simplify right side
    10,533.20x = 61,122,691.77
  5. Step 5: Solve for x
    x = 61,122,691.77/10,533.20
  6. Step 6: Final answer
    x = 5,802.86

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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.