Home / 18,987.26-26,202.49-10,603.76

Finding the Fourth Proportional to 18,987.26, 26,202.49 and 10,603.76

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Solution

The fourth proportional to 18,987.26, 26,202.49 and 10,603.76 is: 14,633.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.26 : 26,202.49 = 10,603.76 : x
  2. Step 2: Convert to fraction form
    18,987.26/26,202.49 = 10,603.76/x
  3. Step 3: Cross multiply
    18,987.26x = 26,202.49 × 10,603.76
  4. Step 4: Simplify right side
    18,987.26x = 277,844,757.84
  5. Step 5: Solve for x
    x = 277,844,757.84/18,987.26
  6. Step 6: Final answer
    x = 14,633.22

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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.