Home / 18,255.42-25,192.44-9,871.92

Finding the Fourth Proportional to 18,255.42, 25,192.44 and 9,871.92

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Solution

The fourth proportional to 18,255.42, 25,192.44 and 9,871.92 is: 13,623.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.42 : 25,192.44 = 9,871.92 : x
  2. Step 2: Convert to fraction form
    18,255.42/25,192.44 = 9,871.92/x
  3. Step 3: Cross multiply
    18,255.42x = 25,192.44 × 9,871.92
  4. Step 4: Simplify right side
    18,255.42x = 248,697,752.28
  5. Step 5: Solve for x
    x = 248,697,752.28/18,255.42
  6. Step 6: Final answer
    x = 13,623.23

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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.