Home / 13,718.07-18,930.96-8,051.72

Finding the Fourth Proportional to 13,718.07, 18,930.96 and 8,051.72

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Solution

The fourth proportional to 13,718.07, 18,930.96 and 8,051.72 is: 11,111.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.07 : 18,930.96 = 8,051.72 : x
  2. Step 2: Convert to fraction form
    13,718.07/18,930.96 = 8,051.72/x
  3. Step 3: Cross multiply
    13,718.07x = 18,930.96 × 8,051.72
  4. Step 4: Simplify right side
    13,718.07x = 152,426,789.25
  5. Step 5: Solve for x
    x = 152,426,789.25/13,718.07
  6. Step 6: Final answer
    x = 11,111.39

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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.