Home / 12,808.05-19,216.59-4,490.38

Finding the Fourth Proportional to 12,808.05, 19,216.59 and 4,490.38

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Solution

The fourth proportional to 12,808.05, 19,216.59 and 4,490.38 is: 6,737.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.05 : 19,216.59 = 4,490.38 : x
  2. Step 2: Convert to fraction form
    12,808.05/19,216.59 = 4,490.38/x
  3. Step 3: Cross multiply
    12,808.05x = 19,216.59 × 4,490.38
  4. Step 4: Simplify right side
    12,808.05x = 86,289,791.40
  5. Step 5: Solve for x
    x = 86,289,791.40/12,808.05
  6. Step 6: Final answer
    x = 6,737.15

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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.