Home / 18,609.16-25,681.79-10,651.21

Finding the Fourth Proportional to 18,609.16, 25,681.79 and 10,651.21

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Solution

The fourth proportional to 18,609.16, 25,681.79 and 10,651.21 is: 14,699.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.16 : 25,681.79 = 10,651.21 : x
  2. Step 2: Convert to fraction form
    18,609.16/25,681.79 = 10,651.21/x
  3. Step 3: Cross multiply
    18,609.16x = 25,681.79 × 10,651.21
  4. Step 4: Simplify right side
    18,609.16x = 273,542,138.47
  5. Step 5: Solve for x
    x = 273,542,138.47/18,609.16
  6. Step 6: Final answer
    x = 14,699.33

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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.