Home / 8,949.92-12,351.05-4,971.40

Finding the Fourth Proportional to 8,949.92, 12,351.05 and 4,971.40

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Solution

The fourth proportional to 8,949.92, 12,351.05 and 4,971.40 is: 6,860.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.92 : 12,351.05 = 4,971.40 : x
  2. Step 2: Convert to fraction form
    8,949.92/12,351.05 = 4,971.40/x
  3. Step 3: Cross multiply
    8,949.92x = 12,351.05 × 4,971.40
  4. Step 4: Simplify right side
    8,949.92x = 61,401,991.52
  5. Step 5: Solve for x
    x = 61,401,991.52/8,949.92
  6. Step 6: Final answer
    x = 6,860.62

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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.