Home / 10,502.90-15,757.69-3,107.40

Finding the Fourth Proportional to 10,502.90, 15,757.69 and 3,107.40

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Solution

The fourth proportional to 10,502.90, 15,757.69 and 3,107.40 is: 4,662.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502.90 : 15,757.69 = 3,107.40 : x
  2. Step 2: Convert to fraction form
    10,502.90/15,757.69 = 3,107.40/x
  3. Step 3: Cross multiply
    10,502.90x = 15,757.69 × 3,107.40
  4. Step 4: Simplify right side
    10,502.90x = 48,965,367.12
  5. Step 5: Solve for x
    x = 48,965,367.12/10,502.90
  6. Step 6: Final answer
    x = 4,662.08

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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.