Home / 9,215.63-12,717.09-5,236.19

Finding the Fourth Proportional to 9,215.63, 12,717.09 and 5,236.19

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Solution

The fourth proportional to 9,215.63, 12,717.09 and 5,236.19 is: 7,225.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.63 : 12,717.09 = 5,236.19 : x
  2. Step 2: Convert to fraction form
    9,215.63/12,717.09 = 5,236.19/x
  3. Step 3: Cross multiply
    9,215.63x = 12,717.09 × 5,236.19
  4. Step 4: Simplify right side
    9,215.63x = 66,589,099.49
  5. Step 5: Solve for x
    x = 66,589,099.49/9,215.63
  6. Step 6: Final answer
    x = 7,225.67

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Half scale
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Double scale
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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.