Home / 18,623.36-27,939.84-6,145.28

Finding the Fourth Proportional to 18,623.36, 27,939.84 and 6,145.28

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Solution

The fourth proportional to 18,623.36, 27,939.84 and 6,145.28 is: 9,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,623.36 : 27,939.84 = 6,145.28 : x
  2. Step 2: Convert to fraction form
    18,623.36/27,939.84 = 6,145.28/x
  3. Step 3: Cross multiply
    18,623.36x = 27,939.84 × 6,145.28
  4. Step 4: Simplify right side
    18,623.36x = 171,698,139.96
  5. Step 5: Solve for x
    x = 171,698,139.96/18,623.36
  6. Step 6: Final answer
    x = 9,219.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.