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Finding the Fourth Proportional to 10,475.99, 15,709.88 and 3,898.58

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Solution

The fourth proportional to 10,475.99, 15,709.88 and 3,898.58 is: 5,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,475.99 : 15,709.88 = 3,898.58 : x
  2. Step 2: Convert to fraction form
    10,475.99/15,709.88 = 3,898.58/x
  3. Step 3: Cross multiply
    10,475.99x = 15,709.88 × 3,898.58
  4. Step 4: Simplify right side
    10,475.99x = 61,246,223.97
  5. Step 5: Solve for x
    x = 61,246,223.97/10,475.99
  6. Step 6: Final answer
    x = 5,846.34

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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.