Home / 15,744.34-21,727.20-8,574.26

Finding the Fourth Proportional to 15,744.34, 21,727.20 and 8,574.26

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Solution

The fourth proportional to 15,744.34, 21,727.20 and 8,574.26 is: 11,832.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,744.34 : 21,727.20 = 8,574.26 : x
  2. Step 2: Convert to fraction form
    15,744.34/21,727.20 = 8,574.26/x
  3. Step 3: Cross multiply
    15,744.34x = 21,727.20 × 8,574.26
  4. Step 4: Simplify right side
    15,744.34x = 186,294,661.87
  5. Step 5: Solve for x
    x = 186,294,661.87/15,744.34
  6. Step 6: Final answer
    x = 11,832.49

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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.