Home / 15,424.66-21,285.93-8,351.03

Finding the Fourth Proportional to 15,424.66, 21,285.93 and 8,351.03

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Solution

The fourth proportional to 15,424.66, 21,285.93 and 8,351.03 is: 11,524.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424.66 : 21,285.93 = 8,351.03 : x
  2. Step 2: Convert to fraction form
    15,424.66/21,285.93 = 8,351.03/x
  3. Step 3: Cross multiply
    15,424.66x = 21,285.93 × 8,351.03
  4. Step 4: Simplify right side
    15,424.66x = 177,759,440.01
  5. Step 5: Solve for x
    x = 177,759,440.01/15,424.66
  6. Step 6: Final answer
    x = 11,524.37

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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.