Home / 12,807.81-19,198.53-4,908.18

Finding the Fourth Proportional to 12,807.81, 19,198.53 and 4,908.18

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Solution

The fourth proportional to 12,807.81, 19,198.53 and 4,908.18 is: 7,357.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807.81 : 19,198.53 = 4,908.18 : x
  2. Step 2: Convert to fraction form
    12,807.81/19,198.53 = 4,908.18/x
  3. Step 3: Cross multiply
    12,807.81x = 19,198.53 × 4,908.18
  4. Step 4: Simplify right side
    12,807.81x = 94,229,840.98
  5. Step 5: Solve for x
    x = 94,229,840.98/12,807.81
  6. Step 6: Final answer
    x = 7,357.22

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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.