Home / 13,184.73-18,195.21-7,216.65

Finding the Fourth Proportional to 13,184.73, 18,195.21 and 7,216.65

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Solution

The fourth proportional to 13,184.73, 18,195.21 and 7,216.65 is: 9,959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.73 : 18,195.21 = 7,216.65 : x
  2. Step 2: Convert to fraction form
    13,184.73/18,195.21 = 7,216.65/x
  3. Step 3: Cross multiply
    13,184.73x = 18,195.21 × 7,216.65
  4. Step 4: Simplify right side
    13,184.73x = 131,308,462.25
  5. Step 5: Solve for x
    x = 131,308,462.25/13,184.73
  6. Step 6: Final answer
    x = 9,959.13

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Half scale
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Double scale
Find fourth proportional to 13,185.73, 18,196.59 and 7,217.65
Similar ratio
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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.