Home / 18,026.68-27,039.98-4,879.40

Finding the Fourth Proportional to 18,026.68, 27,039.98 and 4,879.40

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Solution

The fourth proportional to 18,026.68, 27,039.98 and 4,879.40 is: 7,319.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,026.68 : 27,039.98 = 4,879.40 : x
  2. Step 2: Convert to fraction form
    18,026.68/27,039.98 = 4,879.40/x
  3. Step 3: Cross multiply
    18,026.68x = 27,039.98 × 4,879.40
  4. Step 4: Simplify right side
    18,026.68x = 131,938,878.41
  5. Step 5: Solve for x
    x = 131,938,878.41/18,026.68
  6. Step 6: Final answer
    x = 7,319.09

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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.