Home / 18,986.97-26,200.08-11,030.88

Finding the Fourth Proportional to 18,986.97, 26,200.08 and 11,030.88

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Solution

The fourth proportional to 18,986.97, 26,200.08 and 11,030.88 is: 15,221.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.97 : 26,200.08 = 11,030.88 : x
  2. Step 2: Convert to fraction form
    18,986.97/26,200.08 = 11,030.88/x
  3. Step 3: Cross multiply
    18,986.97x = 26,200.08 × 11,030.88
  4. Step 4: Simplify right side
    18,986.97x = 289,009,938.47
  5. Step 5: Solve for x
    x = 289,009,938.47/18,986.97
  6. Step 6: Final answer
    x = 15,221.49

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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.