Home / 11,313.95-15,613.29-6,278.16

Finding the Fourth Proportional to 11,313.95, 15,613.29 and 6,278.16

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Solution

The fourth proportional to 11,313.95, 15,613.29 and 6,278.16 is: 8,663.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.95 : 15,613.29 = 6,278.16 : x
  2. Step 2: Convert to fraction form
    11,313.95/15,613.29 = 6,278.16/x
  3. Step 3: Cross multiply
    11,313.95x = 15,613.29 × 6,278.16
  4. Step 4: Simplify right side
    11,313.95x = 98,022,732.75
  5. Step 5: Solve for x
    x = 98,022,732.75/11,313.95
  6. Step 6: Final answer
    x = 8,663.89

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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.