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Finding the Fourth Proportional to 7,000.44, 10,500.64 and 1,806.32

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Solution

The fourth proportional to 7,000.44, 10,500.64 and 1,806.32 is: 2,709.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000.44 : 10,500.64 = 1,806.32 : x
  2. Step 2: Convert to fraction form
    7,000.44/10,500.64 = 1,806.32/x
  3. Step 3: Cross multiply
    7,000.44x = 10,500.64 × 1,806.32
  4. Step 4: Simplify right side
    7,000.44x = 18,967,516.04
  5. Step 5: Solve for x
    x = 18,967,516.04/7,000.44
  6. Step 6: Final answer
    x = 2,709.47

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1.5x scale

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.