Home / 11,313.05-15,611.45-6,277.21

Finding the Fourth Proportional to 11,313.05, 15,611.45 and 6,277.21

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Solution

The fourth proportional to 11,313.05, 15,611.45 and 6,277.21 is: 8,662.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.05 : 15,611.45 = 6,277.21 : x
  2. Step 2: Convert to fraction form
    11,313.05/15,611.45 = 6,277.21/x
  3. Step 3: Cross multiply
    11,313.05x = 15,611.45 × 6,277.21
  4. Step 4: Simplify right side
    11,313.05x = 97,996,326.72
  5. Step 5: Solve for x
    x = 97,996,326.72/11,313.05
  6. Step 6: Final answer
    x = 8,662.24

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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.