Home / 18,987.72-26,202.74-11,030.01

Finding the Fourth Proportional to 18,987.72, 26,202.74 and 11,030.01

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Solution

The fourth proportional to 18,987.72, 26,202.74 and 11,030.01 is: 15,221.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.72 : 26,202.74 = 11,030.01 : x
  2. Step 2: Convert to fraction form
    18,987.72/26,202.74 = 11,030.01/x
  3. Step 3: Cross multiply
    18,987.72x = 26,202.74 × 11,030.01
  4. Step 4: Simplify right side
    18,987.72x = 289,016,429.08
  5. Step 5: Solve for x
    x = 289,016,429.08/18,987.72
  6. Step 6: Final answer
    x = 15,221.23

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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.