Home / 8,157.26-11,257.28-4,620.40

Finding the Fourth Proportional to 8,157.26, 11,257.28 and 4,620.40

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Solution

The fourth proportional to 8,157.26, 11,257.28 and 4,620.40 is: 6,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.26 : 11,257.28 = 4,620.40 : x
  2. Step 2: Convert to fraction form
    8,157.26/11,257.28 = 4,620.40/x
  3. Step 3: Cross multiply
    8,157.26x = 11,257.28 × 4,620.40
  4. Step 4: Simplify right side
    8,157.26x = 52,013,136.51
  5. Step 5: Solve for x
    x = 52,013,136.51/8,157.26
  6. Step 6: Final answer
    x = 6,376.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.