Home / 7,622.61-11,426.16-5,157.68

Finding the Fourth Proportional to 7,622.61, 11,426.16 and 5,157.68

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Solution

The fourth proportional to 7,622.61, 11,426.16 and 5,157.68 is: 7,731.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.61 : 11,426.16 = 5,157.68 : x
  2. Step 2: Convert to fraction form
    7,622.61/11,426.16 = 5,157.68/x
  3. Step 3: Cross multiply
    7,622.61x = 11,426.16 × 5,157.68
  4. Step 4: Simplify right side
    7,622.61x = 58,932,439.12
  5. Step 5: Solve for x
    x = 58,932,439.12/7,622.61
  6. Step 6: Final answer
    x = 7,731.27

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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.