Home / 13,717.06-18,883.77-13,090.18

Finding the Fourth Proportional to 13,717.06, 18,883.77 and 13,090.18

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Solution

The fourth proportional to 13,717.06, 18,883.77 and 13,090.18 is: 18,020.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.06 : 18,883.77 = 13,090.18 : x
  2. Step 2: Convert to fraction form
    13,717.06/18,883.77 = 13,090.18/x
  3. Step 3: Cross multiply
    13,717.06x = 18,883.77 × 13,090.18
  4. Step 4: Simplify right side
    13,717.06x = 247,191,948.38
  5. Step 5: Solve for x
    x = 247,191,948.38/13,717.06
  6. Step 6: Final answer
    x = 18,020.77

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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.