Home / 11,313.75-15,613.01-6,277.99

Finding the Fourth Proportional to 11,313.75, 15,613.01 and 6,277.99

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Solution

The fourth proportional to 11,313.75, 15,613.01 and 6,277.99 is: 8,663.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.75 : 15,613.01 = 6,277.99 : x
  2. Step 2: Convert to fraction form
    11,313.75/15,613.01 = 6,277.99/x
  3. Step 3: Cross multiply
    11,313.75x = 15,613.01 × 6,277.99
  4. Step 4: Simplify right side
    11,313.75x = 98,018,254.66
  5. Step 5: Solve for x
    x = 98,018,254.66/11,313.75
  6. Step 6: Final answer
    x = 8,663.64

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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.