Home / 12,995.73-19,490.13-3,635.16

Finding the Fourth Proportional to 12,995.73, 19,490.13 and 3,635.16

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Solution

The fourth proportional to 12,995.73, 19,490.13 and 3,635.16 is: 5,451.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.73 : 19,490.13 = 3,635.16 : x
  2. Step 2: Convert to fraction form
    12,995.73/19,490.13 = 3,635.16/x
  3. Step 3: Cross multiply
    12,995.73x = 19,490.13 × 3,635.16
  4. Step 4: Simplify right side
    12,995.73x = 70,849,814.06
  5. Step 5: Solve for x
    x = 70,849,814.06/12,995.73
  6. Step 6: Final answer
    x = 5,451.78

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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.