Home / 11,313.29-15,611.80-6,277.45

Finding the Fourth Proportional to 11,313.29, 15,611.80 and 6,277.45

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Solution

The fourth proportional to 11,313.29, 15,611.80 and 6,277.45 is: 8,662.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.29 : 15,611.80 = 6,277.45 : x
  2. Step 2: Convert to fraction form
    11,313.29/15,611.80 = 6,277.45/x
  3. Step 3: Cross multiply
    11,313.29x = 15,611.80 × 6,277.45
  4. Step 4: Simplify right side
    11,313.29x = 98,002,293.91
  5. Step 5: Solve for x
    x = 98,002,293.91/11,313.29
  6. Step 6: Final answer
    x = 8,662.58

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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.