Home / 19,678.16-27,153.96-11,293.04

Finding the Fourth Proportional to 19,678.16, 27,153.96 and 11,293.04

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Solution

The fourth proportional to 19,678.16, 27,153.96 and 11,293.04 is: 15,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.16 : 27,153.96 = 11,293.04 : x
  2. Step 2: Convert to fraction form
    19,678.16/27,153.96 = 11,293.04/x
  3. Step 3: Cross multiply
    19,678.16x = 27,153.96 × 11,293.04
  4. Step 4: Simplify right side
    19,678.16x = 306,650,756.44
  5. Step 5: Solve for x
    x = 306,650,756.44/19,678.16
  6. Step 6: Final answer
    x = 15,583.30

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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.