Home / 19,121.37-26,388.28-10,623.45

Finding the Fourth Proportional to 19,121.37, 26,388.28 and 10,623.45

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Solution

The fourth proportional to 19,121.37, 26,388.28 and 10,623.45 is: 14,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.37 : 26,388.28 = 10,623.45 : x
  2. Step 2: Convert to fraction form
    19,121.37/26,388.28 = 10,623.45/x
  3. Step 3: Cross multiply
    19,121.37x = 26,388.28 × 10,623.45
  4. Step 4: Simplify right side
    19,121.37x = 280,334,685.40
  5. Step 5: Solve for x
    x = 280,334,685.40/19,121.37
  6. Step 6: Final answer
    x = 14,660.81

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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.