Home / 6,999.72-10,467.14-5,421.84

Finding the Fourth Proportional to 6,999.72, 10,467.14 and 5,421.84

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Solution

The fourth proportional to 6,999.72, 10,467.14 and 5,421.84 is: 8,107.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.72 : 10,467.14 = 5,421.84 : x
  2. Step 2: Convert to fraction form
    6,999.72/10,467.14 = 5,421.84/x
  3. Step 3: Cross multiply
    6,999.72x = 10,467.14 × 5,421.84
  4. Step 4: Simplify right side
    6,999.72x = 56,751,158.34
  5. Step 5: Solve for x
    x = 56,751,158.34/6,999.72
  6. Step 6: Final answer
    x = 8,107.63

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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.