Home / 12,807.48-19,213.38-4,042.20

Finding the Fourth Proportional to 12,807.48, 19,213.38 and 4,042.20

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Solution

The fourth proportional to 12,807.48, 19,213.38 and 4,042.20 is: 6,063.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807.48 : 19,213.38 = 4,042.20 : x
  2. Step 2: Convert to fraction form
    12,807.48/19,213.38 = 4,042.20/x
  3. Step 3: Cross multiply
    12,807.48x = 19,213.38 × 4,042.20
  4. Step 4: Simplify right side
    12,807.48x = 77,664,324.64
  5. Step 5: Solve for x
    x = 77,664,324.64/12,807.48
  6. Step 6: Final answer
    x = 6,063.98

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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.