Home / 10,309.80-15,464.28-4,761.32

Finding the Fourth Proportional to 10,309.80, 15,464.28 and 4,761.32

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Solution

The fourth proportional to 10,309.80, 15,464.28 and 4,761.32 is: 7,141.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.80 : 15,464.28 = 4,761.32 : x
  2. Step 2: Convert to fraction form
    10,309.80/15,464.28 = 4,761.32/x
  3. Step 3: Cross multiply
    10,309.80x = 15,464.28 × 4,761.32
  4. Step 4: Simplify right side
    10,309.80x = 73,630,385.65
  5. Step 5: Solve for x
    x = 73,630,385.65/10,309.80
  6. Step 6: Final answer
    x = 7,141.79

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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.