Home / 11,313.99-15,613.37-6,278.31

Finding the Fourth Proportional to 11,313.99, 15,613.37 and 6,278.31

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Solution

The fourth proportional to 11,313.99, 15,613.37 and 6,278.31 is: 8,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.99 : 15,613.37 = 6,278.31 : x
  2. Step 2: Convert to fraction form
    11,313.99/15,613.37 = 6,278.31/x
  3. Step 3: Cross multiply
    11,313.99x = 15,613.37 × 6,278.31
  4. Step 4: Simplify right side
    11,313.99x = 98,025,577.00
  5. Step 5: Solve for x
    x = 98,025,577.00/11,313.99
  6. Step 6: Final answer
    x = 8,664.10

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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.