Home / 13,222.53-18,246.96-7,254.19

Finding the Fourth Proportional to 13,222.53, 18,246.96 and 7,254.19

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Solution

The fourth proportional to 13,222.53, 18,246.96 and 7,254.19 is: 10,010.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.53 : 18,246.96 = 7,254.19 : x
  2. Step 2: Convert to fraction form
    13,222.53/18,246.96 = 7,254.19/x
  3. Step 3: Cross multiply
    13,222.53x = 18,246.96 × 7,254.19
  4. Step 4: Simplify right side
    13,222.53x = 132,366,914.76
  5. Step 5: Solve for x
    x = 132,366,914.76/13,222.53
  6. Step 6: Final answer
    x = 10,010.71

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Half scale
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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.