Home / 13,736.07-18,945.77-8,701.11

Finding the Fourth Proportional to 13,736.07, 18,945.77 and 8,701.11

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Solution

The fourth proportional to 13,736.07, 18,945.77 and 8,701.11 is: 12,001.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.07 : 18,945.77 = 8,701.11 : x
  2. Step 2: Convert to fraction form
    13,736.07/18,945.77 = 8,701.11/x
  3. Step 3: Cross multiply
    13,736.07x = 18,945.77 × 8,701.11
  4. Step 4: Simplify right side
    13,736.07x = 164,849,185.30
  5. Step 5: Solve for x
    x = 164,849,185.30/13,736.07
  6. Step 6: Final answer
    x = 12,001.19

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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.