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Finding the Fourth Proportional to 15,978.96, 23,972.13 and 4,887.27

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Solution

The fourth proportional to 15,978.96, 23,972.13 and 4,887.27 is: 7,332.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,978.96 : 23,972.13 = 4,887.27 : x
  2. Step 2: Convert to fraction form
    15,978.96/23,972.13 = 4,887.27/x
  3. Step 3: Cross multiply
    15,978.96x = 23,972.13 × 4,887.27
  4. Step 4: Simplify right side
    15,978.96x = 117,158,271.79
  5. Step 5: Solve for x
    x = 117,158,271.79/15,978.96
  6. Step 6: Final answer
    x = 7,332.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.