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Finding the Fourth Proportional to 10,898.98, 16,353.98 and 4,975.20

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Solution

The fourth proportional to 10,898.98, 16,353.98 and 4,975.20 is: 7,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,898.98 : 16,353.98 = 4,975.20 : x
  2. Step 2: Convert to fraction form
    10,898.98/16,353.98 = 4,975.20/x
  3. Step 3: Cross multiply
    10,898.98x = 16,353.98 × 4,975.20
  4. Step 4: Simplify right side
    10,898.98x = 81,364,321.30
  5. Step 5: Solve for x
    x = 81,364,321.30/10,898.98
  6. Step 6: Final answer
    x = 7,465.32

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Why These Related Problems?

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