Home / 13,636.62-18,820.35-10,109.88

Finding the Fourth Proportional to 13,636.62, 18,820.35 and 10,109.88

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Solution

The fourth proportional to 13,636.62, 18,820.35 and 10,109.88 is: 13,952.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.62 : 18,820.35 = 10,109.88 : x
  2. Step 2: Convert to fraction form
    13,636.62/18,820.35 = 10,109.88/x
  3. Step 3: Cross multiply
    13,636.62x = 18,820.35 × 10,109.88
  4. Step 4: Simplify right side
    13,636.62x = 190,271,480.06
  5. Step 5: Solve for x
    x = 190,271,480.06/13,636.62
  6. Step 6: Final answer
    x = 13,952.98

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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.