Home / 18,009.81-27,008.55-6,321.51

Finding the Fourth Proportional to 18,009.81, 27,008.55 and 6,321.51

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Solution

The fourth proportional to 18,009.81, 27,008.55 and 6,321.51 is: 9,480.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.81 : 27,008.55 = 6,321.51 : x
  2. Step 2: Convert to fraction form
    18,009.81/27,008.55 = 6,321.51/x
  3. Step 3: Cross multiply
    18,009.81x = 27,008.55 × 6,321.51
  4. Step 4: Simplify right side
    18,009.81x = 170,734,818.91
  5. Step 5: Solve for x
    x = 170,734,818.91/18,009.81
  6. Step 6: Final answer
    x = 9,480.10

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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.