Home / 15,238.50-21,020.67-8,864.37

Finding the Fourth Proportional to 15,238.50, 21,020.67 and 8,864.37

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Solution

The fourth proportional to 15,238.50, 21,020.67 and 8,864.37 is: 12,227.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.50 : 21,020.67 = 8,864.37 : x
  2. Step 2: Convert to fraction form
    15,238.50/21,020.67 = 8,864.37/x
  3. Step 3: Cross multiply
    15,238.50x = 21,020.67 × 8,864.37
  4. Step 4: Simplify right side
    15,238.50x = 186,334,996.53
  5. Step 5: Solve for x
    x = 186,334,996.53/15,238.50
  6. Step 6: Final answer
    x = 12,227.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.