Home / 18,017.91-27,028.26-4,870.35

Finding the Fourth Proportional to 18,017.91, 27,028.26 and 4,870.35

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Solution

The fourth proportional to 18,017.91, 27,028.26 and 4,870.35 is: 7,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,017.91 : 27,028.26 = 4,870.35 : x
  2. Step 2: Convert to fraction form
    18,017.91/27,028.26 = 4,870.35/x
  3. Step 3: Cross multiply
    18,017.91x = 27,028.26 × 4,870.35
  4. Step 4: Simplify right side
    18,017.91x = 131,637,086.09
  5. Step 5: Solve for x
    x = 131,637,086.09/18,017.91
  6. Step 6: Final answer
    x = 7,305.90

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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.