Home / 18,368.10-27,551.97-5,218.74

Finding the Fourth Proportional to 18,368.10, 27,551.97 and 5,218.74

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Solution

The fourth proportional to 18,368.10, 27,551.97 and 5,218.74 is: 7,828.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.10 : 27,551.97 = 5,218.74 : x
  2. Step 2: Convert to fraction form
    18,368.10/27,551.97 = 5,218.74/x
  3. Step 3: Cross multiply
    18,368.10x = 27,551.97 × 5,218.74
  4. Step 4: Simplify right side
    18,368.10x = 143,786,567.92
  5. Step 5: Solve for x
    x = 143,786,567.92/18,368.10
  6. Step 6: Final answer
    x = 7,828.06

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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.