Home / 12,707.45-19,057.72-5,310.36

Finding the Fourth Proportional to 12,707.45, 19,057.72 and 5,310.36

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Solution

The fourth proportional to 12,707.45, 19,057.72 and 5,310.36 is: 7,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.45 : 19,057.72 = 5,310.36 : x
  2. Step 2: Convert to fraction form
    12,707.45/19,057.72 = 5,310.36/x
  3. Step 3: Cross multiply
    12,707.45x = 19,057.72 × 5,310.36
  4. Step 4: Simplify right side
    12,707.45x = 101,203,353.98
  5. Step 5: Solve for x
    x = 101,203,353.98/12,707.45
  6. Step 6: Final answer
    x = 7,964.10

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1.5x scale

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.