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Finding the Fourth Proportional to 15,632.76, 21,573.24 and 8,559.57

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Solution

The fourth proportional to 15,632.76, 21,573.24 and 8,559.57 is: 11,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,632.76 : 21,573.24 = 8,559.57 : x
  2. Step 2: Convert to fraction form
    15,632.76/21,573.24 = 8,559.57/x
  3. Step 3: Cross multiply
    15,632.76x = 21,573.24 × 8,559.57
  4. Step 4: Simplify right side
    15,632.76x = 184,657,657.91
  5. Step 5: Solve for x
    x = 184,657,657.91/15,632.76
  6. Step 6: Final answer
    x = 11,812.22

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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.