Home / 8,922.78-13,384.40-2,999.76

Finding the Fourth Proportional to 8,922.78, 13,384.40 and 2,999.76

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Solution

The fourth proportional to 8,922.78, 13,384.40 and 2,999.76 is: 4,499.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.78 : 13,384.40 = 2,999.76 : x
  2. Step 2: Convert to fraction form
    8,922.78/13,384.40 = 2,999.76/x
  3. Step 3: Cross multiply
    8,922.78x = 13,384.40 × 2,999.76
  4. Step 4: Simplify right side
    8,922.78x = 40,149,972.75
  5. Step 5: Solve for x
    x = 40,149,972.75/8,922.78
  6. Step 6: Final answer
    x = 4,499.72

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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.