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Finding the Fourth Proportional to 6,899.91, 10,318.07 and 5,124.32

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Solution

The fourth proportional to 6,899.91, 10,318.07 and 5,124.32 is: 7,662.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.91 : 10,318.07 = 5,124.32 : x
  2. Step 2: Convert to fraction form
    6,899.91/10,318.07 = 5,124.32/x
  3. Step 3: Cross multiply
    6,899.91x = 10,318.07 × 5,124.32
  4. Step 4: Simplify right side
    6,899.91x = 52,873,041.05
  5. Step 5: Solve for x
    x = 52,873,041.05/6,899.91
  6. Step 6: Final answer
    x = 7,662.87

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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.