Home / 18,905.31-26,089.89-10,950.03

Finding the Fourth Proportional to 18,905.31, 26,089.89 and 10,950.03

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Solution

The fourth proportional to 18,905.31, 26,089.89 and 10,950.03 is: 15,111.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.31 : 26,089.89 = 10,950.03 : x
  2. Step 2: Convert to fraction form
    18,905.31/26,089.89 = 10,950.03/x
  3. Step 3: Cross multiply
    18,905.31x = 26,089.89 × 10,950.03
  4. Step 4: Simplify right side
    18,905.31x = 285,685,078.20
  5. Step 5: Solve for x
    x = 285,685,078.20/18,905.31
  6. Step 6: Final answer
    x = 15,111.37

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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.