Home / 11,236.28-15,506.79-6,457.76

Finding the Fourth Proportional to 11,236.28, 15,506.79 and 6,457.76

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Solution

The fourth proportional to 11,236.28, 15,506.79 and 6,457.76 is: 8,912.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.28 : 15,506.79 = 6,457.76 : x
  2. Step 2: Convert to fraction form
    11,236.28/15,506.79 = 6,457.76/x
  3. Step 3: Cross multiply
    11,236.28x = 15,506.79 × 6,457.76
  4. Step 4: Simplify right side
    11,236.28x = 100,139,128.19
  5. Step 5: Solve for x
    x = 100,139,128.19/11,236.28
  6. Step 6: Final answer
    x = 8,912.12

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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.