Home / 15,636.40-21,577.82-8,563.12

Finding the Fourth Proportional to 15,636.40, 21,577.82 and 8,563.12

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Solution

The fourth proportional to 15,636.40, 21,577.82 and 8,563.12 is: 11,816.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.40 : 21,577.82 = 8,563.12 : x
  2. Step 2: Convert to fraction form
    15,636.40/21,577.82 = 8,563.12/x
  3. Step 3: Cross multiply
    15,636.40x = 21,577.82 × 8,563.12
  4. Step 4: Simplify right side
    15,636.40x = 184,773,462.00
  5. Step 5: Solve for x
    x = 184,773,462.00/15,636.40
  6. Step 6: Final answer
    x = 11,816.88

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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.