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Finding the Fourth Proportional to 15,632.86, 21,573.30 and 8,559.22

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Solution

The fourth proportional to 15,632.86, 21,573.30 and 8,559.22 is: 11,811.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,632.86 : 21,573.30 = 8,559.22 : x
  2. Step 2: Convert to fraction form
    15,632.86/21,573.30 = 8,559.22/x
  3. Step 3: Cross multiply
    15,632.86x = 21,573.30 × 8,559.22
  4. Step 4: Simplify right side
    15,632.86x = 184,650,620.83
  5. Step 5: Solve for x
    x = 184,650,620.83/15,632.86
  6. Step 6: Final answer
    x = 11,811.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.