Home / 19,142.51-26,411.67-11,180.21

Finding the Fourth Proportional to 19,142.51, 26,411.67 and 11,180.21

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Solution

The fourth proportional to 19,142.51, 26,411.67 and 11,180.21 is: 15,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.51 : 26,411.67 = 11,180.21 : x
  2. Step 2: Convert to fraction form
    19,142.51/26,411.67 = 11,180.21/x
  3. Step 3: Cross multiply
    19,142.51x = 26,411.67 × 11,180.21
  4. Step 4: Simplify right side
    19,142.51x = 295,287,884.99
  5. Step 5: Solve for x
    x = 295,287,884.99/19,142.51
  6. Step 6: Final answer
    x = 15,425.77

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Double scale
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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.