Home / 11,313.66-15,613.21-6,278.25

Finding the Fourth Proportional to 11,313.66, 15,613.21 and 6,278.25

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Solution

The fourth proportional to 11,313.66, 15,613.21 and 6,278.25 is: 8,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.66 : 15,613.21 = 6,278.25 : x
  2. Step 2: Convert to fraction form
    11,313.66/15,613.21 = 6,278.25/x
  3. Step 3: Cross multiply
    11,313.66x = 15,613.21 × 6,278.25
  4. Step 4: Simplify right side
    11,313.66x = 98,023,619.99
  5. Step 5: Solve for x
    x = 98,023,619.99/11,313.66
  6. Step 6: Final answer
    x = 8,664.18

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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.