Home / 20,649.63-28,496.16-11,697.06

Finding the Fourth Proportional to 20,649.63, 28,496.16 and 11,697.06

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Solution

The fourth proportional to 20,649.63, 28,496.16 and 11,697.06 is: 16,141.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649.63 : 28,496.16 = 11,697.06 : x
  2. Step 2: Convert to fraction form
    20,649.63/28,496.16 = 11,697.06/x
  3. Step 3: Cross multiply
    20,649.63x = 28,496.16 × 11,697.06
  4. Step 4: Simplify right side
    20,649.63x = 333,321,293.29
  5. Step 5: Solve for x
    x = 333,321,293.29/20,649.63
  6. Step 6: Final answer
    x = 16,141.76

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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.