Home / 12,864.56-19,297.50-3,631.28

Finding the Fourth Proportional to 12,864.56, 19,297.50 and 3,631.28

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Solution

The fourth proportional to 12,864.56, 19,297.50 and 3,631.28 is: 5,447.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.56 : 19,297.50 = 3,631.28 : x
  2. Step 2: Convert to fraction form
    12,864.56/19,297.50 = 3,631.28/x
  3. Step 3: Cross multiply
    12,864.56x = 19,297.50 × 3,631.28
  4. Step 4: Simplify right side
    12,864.56x = 70,074,625.80
  5. Step 5: Solve for x
    x = 70,074,625.80/12,864.56
  6. Step 6: Final answer
    x = 5,447.11

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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.