Home / 18,986.09-26,200.88-10,372.39

Finding the Fourth Proportional to 18,986.09, 26,200.88 and 10,372.39

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Solution

The fourth proportional to 18,986.09, 26,200.88 and 10,372.39 is: 14,313.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.09 : 26,200.88 = 10,372.39 : x
  2. Step 2: Convert to fraction form
    18,986.09/26,200.88 = 10,372.39/x
  3. Step 3: Cross multiply
    18,986.09x = 26,200.88 × 10,372.39
  4. Step 4: Simplify right side
    18,986.09x = 271,765,706.13
  5. Step 5: Solve for x
    x = 271,765,706.13/18,986.09
  6. Step 6: Final answer
    x = 14,313.94

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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.