Home / 13,755.06-18,982-7,467.44

Finding the Fourth Proportional to 13,755.06, 18,982 and 7,467.44

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Solution

The fourth proportional to 13,755.06, 18,982 and 7,467.44 is: 10,305.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.06 : 18,982 = 7,467.44 : x
  2. Step 2: Convert to fraction form
    13,755.06/18,982 = 7,467.44/x
  3. Step 3: Cross multiply
    13,755.06x = 18,982 × 7,467.44
  4. Step 4: Simplify right side
    13,755.06x = 141,746,946.08
  5. Step 5: Solve for x
    x = 141,746,946.08/13,755.06
  6. Step 6: Final answer
    x = 10,305.08

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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.