Home / 18,987.23-26,202.49-10,489.25

Finding the Fourth Proportional to 18,987.23, 26,202.49 and 10,489.25

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Solution

The fourth proportional to 18,987.23, 26,202.49 and 10,489.25 is: 14,475.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.23 : 26,202.49 = 10,489.25 : x
  2. Step 2: Convert to fraction form
    18,987.23/26,202.49 = 10,489.25/x
  3. Step 3: Cross multiply
    18,987.23x = 26,202.49 × 10,489.25
  4. Step 4: Simplify right side
    18,987.23x = 274,844,507.52
  5. Step 5: Solve for x
    x = 274,844,507.52/18,987.23
  6. Step 6: Final answer
    x = 14,475.23

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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.