Home / 8,425.17-12,630.89-3,157.22

Finding the Fourth Proportional to 8,425.17, 12,630.89 and 3,157.22

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Solution

The fourth proportional to 8,425.17, 12,630.89 and 3,157.22 is: 4,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.17 : 12,630.89 = 3,157.22 : x
  2. Step 2: Convert to fraction form
    8,425.17/12,630.89 = 3,157.22/x
  3. Step 3: Cross multiply
    8,425.17x = 12,630.89 × 3,157.22
  4. Step 4: Simplify right side
    8,425.17x = 39,878,538.00
  5. Step 5: Solve for x
    x = 39,878,538.00/8,425.17
  6. Step 6: Final answer
    x = 4,733.26

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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.