Home / 9,947.20-14,904.60-7,322.80

Finding the Fourth Proportional to 9,947.20, 14,904.60 and 7,322.80

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Solution

The fourth proportional to 9,947.20, 14,904.60 and 7,322.80 is: 10,972.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947.20 : 14,904.60 = 7,322.80 : x
  2. Step 2: Convert to fraction form
    9,947.20/14,904.60 = 7,322.80/x
  3. Step 3: Cross multiply
    9,947.20x = 14,904.60 × 7,322.80
  4. Step 4: Simplify right side
    9,947.20x = 109,143,404.88
  5. Step 5: Solve for x
    x = 109,143,404.88/9,947.20
  6. Step 6: Final answer
    x = 10,972.27

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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.