Home / 17,855.12-26,802.14-13,160.58

Finding the Fourth Proportional to 17,855.12, 26,802.14 and 13,160.58

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Solution

The fourth proportional to 17,855.12, 26,802.14 and 13,160.58 is: 19,755.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,855.12 : 26,802.14 = 13,160.58 : x
  2. Step 2: Convert to fraction form
    17,855.12/26,802.14 = 13,160.58/x
  3. Step 3: Cross multiply
    17,855.12x = 26,802.14 × 13,160.58
  4. Step 4: Simplify right side
    17,855.12x = 352,731,641.84
  5. Step 5: Solve for x
    x = 352,731,641.84/17,855.12
  6. Step 6: Final answer
    x = 19,755.22

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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.