Home / 13,192.98-18,199.71-7,886.40

Finding the Fourth Proportional to 13,192.98, 18,199.71 and 7,886.40

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Solution

The fourth proportional to 13,192.98, 18,199.71 and 7,886.40 is: 10,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,192.98 : 18,199.71 = 7,886.40 : x
  2. Step 2: Convert to fraction form
    13,192.98/18,199.71 = 7,886.40/x
  3. Step 3: Cross multiply
    13,192.98x = 18,199.71 × 7,886.40
  4. Step 4: Simplify right side
    13,192.98x = 143,530,192.94
  5. Step 5: Solve for x
    x = 143,530,192.94/13,192.98
  6. Step 6: Final answer
    x = 10,879.29

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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.