Home / 13,659.93-18,853.10-13,036.64

Finding the Fourth Proportional to 13,659.93, 18,853.10 and 13,036.64

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Solution

The fourth proportional to 13,659.93, 18,853.10 and 13,036.64 is: 17,992.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.93 : 18,853.10 = 13,036.64 : x
  2. Step 2: Convert to fraction form
    13,659.93/18,853.10 = 13,036.64/x
  3. Step 3: Cross multiply
    13,659.93x = 18,853.10 × 13,036.64
  4. Step 4: Simplify right side
    13,659.93x = 245,780,918.14
  5. Step 5: Solve for x
    x = 245,780,918.14/13,659.93
  6. Step 6: Final answer
    x = 17,992.84

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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.