Home / 10,356.20-15,533.10-2,961.80

Finding the Fourth Proportional to 10,356.20, 15,533.10 and 2,961.80

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Solution

The fourth proportional to 10,356.20, 15,533.10 and 2,961.80 is: 4,442.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.20 : 15,533.10 = 2,961.80 : x
  2. Step 2: Convert to fraction form
    10,356.20/15,533.10 = 2,961.80/x
  3. Step 3: Cross multiply
    10,356.20x = 15,533.10 × 2,961.80
  4. Step 4: Simplify right side
    10,356.20x = 46,005,935.58
  5. Step 5: Solve for x
    x = 46,005,935.58/10,356.20
  6. Step 6: Final answer
    x = 4,442.36

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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.