Home / 19,884.75-27,418.41-12,705.18

Finding the Fourth Proportional to 19,884.75, 27,418.41 and 12,705.18

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Solution

The fourth proportional to 19,884.75, 27,418.41 and 12,705.18 is: 17,518.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.75 : 27,418.41 = 12,705.18 : x
  2. Step 2: Convert to fraction form
    19,884.75/27,418.41 = 12,705.18/x
  3. Step 3: Cross multiply
    19,884.75x = 27,418.41 × 12,705.18
  4. Step 4: Simplify right side
    19,884.75x = 348,355,834.36
  5. Step 5: Solve for x
    x = 348,355,834.36/19,884.75
  6. Step 6: Final answer
    x = 17,518.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.