Home / 10,815.12-16,225.92-4,975.02

Finding the Fourth Proportional to 10,815.12, 16,225.92 and 4,975.02

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Solution

The fourth proportional to 10,815.12, 16,225.92 and 4,975.02 is: 7,464.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.12 : 16,225.92 = 4,975.02 : x
  2. Step 2: Convert to fraction form
    10,815.12/16,225.92 = 4,975.02/x
  3. Step 3: Cross multiply
    10,815.12x = 16,225.92 × 4,975.02
  4. Step 4: Simplify right side
    10,815.12x = 80,724,276.52
  5. Step 5: Solve for x
    x = 80,724,276.52/10,815.12
  6. Step 6: Final answer
    x = 7,464.02

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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.