Home / 11,321.40-15,620.94-6,602.88

Finding the Fourth Proportional to 11,321.40, 15,620.94 and 6,602.88

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Solution

The fourth proportional to 11,321.40, 15,620.94 and 6,602.88 is: 9,110.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.40 : 15,620.94 = 6,602.88 : x
  2. Step 2: Convert to fraction form
    11,321.40/15,620.94 = 6,602.88/x
  3. Step 3: Cross multiply
    11,321.40x = 15,620.94 × 6,602.88
  4. Step 4: Simplify right side
    11,321.40x = 103,143,192.31
  5. Step 5: Solve for x
    x = 103,143,192.31/11,321.40
  6. Step 6: Final answer
    x = 9,110.46

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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.