Home / 8,127.72-12,194.60-4,971.63

Finding the Fourth Proportional to 8,127.72, 12,194.60 and 4,971.63

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Solution

The fourth proportional to 8,127.72, 12,194.60 and 4,971.63 is: 7,459.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.72 : 12,194.60 = 4,971.63 : x
  2. Step 2: Convert to fraction form
    8,127.72/12,194.60 = 4,971.63/x
  3. Step 3: Cross multiply
    8,127.72x = 12,194.60 × 4,971.63
  4. Step 4: Simplify right side
    8,127.72x = 60,627,014.34
  5. Step 5: Solve for x
    x = 60,627,014.34/8,127.72
  6. Step 6: Final answer
    x = 7,459.29

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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.