Home / 11,321.63-15,623.87-6,606.21

Finding the Fourth Proportional to 11,321.63, 15,623.87 and 6,606.21

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Solution

The fourth proportional to 11,321.63, 15,623.87 and 6,606.21 is: 9,116.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.63 : 15,623.87 = 6,606.21 : x
  2. Step 2: Convert to fraction form
    11,321.63/15,623.87 = 6,606.21/x
  3. Step 3: Cross multiply
    11,321.63x = 15,623.87 × 6,606.21
  4. Step 4: Simplify right side
    11,321.63x = 103,214,533.20
  5. Step 5: Solve for x
    x = 103,214,533.20/11,321.63
  6. Step 6: Final answer
    x = 9,116.58

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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.