Home / 13,840.91-19,091.93-9,863.31

Finding the Fourth Proportional to 13,840.91, 19,091.93 and 9,863.31

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Solution

The fourth proportional to 13,840.91, 19,091.93 and 9,863.31 is: 13,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.91 : 19,091.93 = 9,863.31 : x
  2. Step 2: Convert to fraction form
    13,840.91/19,091.93 = 9,863.31/x
  3. Step 3: Cross multiply
    13,840.91x = 19,091.93 × 9,863.31
  4. Step 4: Simplify right side
    13,840.91x = 188,309,574.77
  5. Step 5: Solve for x
    x = 188,309,574.77/13,840.91
  6. Step 6: Final answer
    x = 13,605.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.