Home / 8,947.12-13,420.60-5,274.88

Finding the Fourth Proportional to 8,947.12, 13,420.60 and 5,274.88

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Solution

The fourth proportional to 8,947.12, 13,420.60 and 5,274.88 is: 7,912.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.12 : 13,420.60 = 5,274.88 : x
  2. Step 2: Convert to fraction form
    8,947.12/13,420.60 = 5,274.88/x
  3. Step 3: Cross multiply
    8,947.12x = 13,420.60 × 5,274.88
  4. Step 4: Simplify right side
    8,947.12x = 70,792,054.53
  5. Step 5: Solve for x
    x = 70,792,054.53/8,947.12
  6. Step 6: Final answer
    x = 7,912.27

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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.