Home / 15,751.96-21,728.09-9,374.27

Finding the Fourth Proportional to 15,751.96, 21,728.09 and 9,374.27

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Solution

The fourth proportional to 15,751.96, 21,728.09 and 9,374.27 is: 12,930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.96 : 21,728.09 = 9,374.27 : x
  2. Step 2: Convert to fraction form
    15,751.96/21,728.09 = 9,374.27/x
  3. Step 3: Cross multiply
    15,751.96x = 21,728.09 × 9,374.27
  4. Step 4: Simplify right side
    15,751.96x = 203,684,982.24
  5. Step 5: Solve for x
    x = 203,684,982.24/15,751.96
  6. Step 6: Final answer
    x = 12,930.77

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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.