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Finding the Fourth Proportional to 15,903.59, 23,866.31 and 5,515.34

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Solution

The fourth proportional to 15,903.59, 23,866.31 and 5,515.34 is: 8,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,903.59 : 23,866.31 = 5,515.34 : x
  2. Step 2: Convert to fraction form
    15,903.59/23,866.31 = 5,515.34/x
  3. Step 3: Cross multiply
    15,903.59x = 23,866.31 × 5,515.34
  4. Step 4: Simplify right side
    15,903.59x = 131,630,814.20
  5. Step 5: Solve for x
    x = 131,630,814.20/15,903.59
  6. Step 6: Final answer
    x = 8,276.80

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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.