Home / 8,777.04-12,112.90-4,949.62

Finding the Fourth Proportional to 8,777.04, 12,112.90 and 4,949.62

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Solution

The fourth proportional to 8,777.04, 12,112.90 and 4,949.62 is: 6,830.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.04 : 12,112.90 = 4,949.62 : x
  2. Step 2: Convert to fraction form
    8,777.04/12,112.90 = 4,949.62/x
  3. Step 3: Cross multiply
    8,777.04x = 12,112.90 × 4,949.62
  4. Step 4: Simplify right side
    8,777.04x = 59,954,252.10
  5. Step 5: Solve for x
    x = 59,954,252.10/8,777.04
  6. Step 6: Final answer
    x = 6,830.81

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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.