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Finding the Fourth Proportional to 15,632.68, 21,573.10 and 8,559.54

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Solution

The fourth proportional to 15,632.68, 21,573.10 and 8,559.54 is: 11,812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,632.68 : 21,573.10 = 8,559.54 : x
  2. Step 2: Convert to fraction form
    15,632.68/21,573.10 = 8,559.54/x
  3. Step 3: Cross multiply
    15,632.68x = 21,573.10 × 8,559.54
  4. Step 4: Simplify right side
    15,632.68x = 184,655,812.37
  5. Step 5: Solve for x
    x = 184,655,812.37/15,632.68
  6. Step 6: Final answer
    x = 11,812.17

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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.