Home / 15,636.44-21,577.56-8,561.36

Finding the Fourth Proportional to 15,636.44, 21,577.56 and 8,561.36

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Solution

The fourth proportional to 15,636.44, 21,577.56 and 8,561.36 is: 11,814.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.44 : 21,577.56 = 8,561.36 : x
  2. Step 2: Convert to fraction form
    15,636.44/21,577.56 = 8,561.36/x
  3. Step 3: Cross multiply
    15,636.44x = 21,577.56 × 8,561.36
  4. Step 4: Simplify right side
    15,636.44x = 184,733,259.08
  5. Step 5: Solve for x
    x = 184,733,259.08/15,636.44
  6. Step 6: Final answer
    x = 11,814.28

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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.