Home / 8,930.56-12,323.88-5,571.64

Finding the Fourth Proportional to 8,930.56, 12,323.88 and 5,571.64

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Solution

The fourth proportional to 8,930.56, 12,323.88 and 5,571.64 is: 7,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.56 : 12,323.88 = 5,571.64 : x
  2. Step 2: Convert to fraction form
    8,930.56/12,323.88 = 5,571.64/x
  3. Step 3: Cross multiply
    8,930.56x = 12,323.88 × 5,571.64
  4. Step 4: Simplify right side
    8,930.56x = 68,664,222.76
  5. Step 5: Solve for x
    x = 68,664,222.76/8,930.56
  6. Step 6: Final answer
    x = 7,688.68

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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.