Home / 13,261.51-19,879.83-4,490.29

Finding the Fourth Proportional to 13,261.51, 19,879.83 and 4,490.29

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Solution

The fourth proportional to 13,261.51, 19,879.83 and 4,490.29 is: 6,731.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.51 : 19,879.83 = 4,490.29 : x
  2. Step 2: Convert to fraction form
    13,261.51/19,879.83 = 4,490.29/x
  3. Step 3: Cross multiply
    13,261.51x = 19,879.83 × 4,490.29
  4. Step 4: Simplify right side
    13,261.51x = 89,266,201.85
  5. Step 5: Solve for x
    x = 89,266,201.85/13,261.51
  6. Step 6: Final answer
    x = 6,731.22

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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.