Home / 6,475.20-9,722.56-5,172.80

Finding the Fourth Proportional to 6,475.20, 9,722.56 and 5,172.80

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Solution

The fourth proportional to 6,475.20, 9,722.56 and 5,172.80 is: 7,767.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,475.20 : 9,722.56 = 5,172.80 : x
  2. Step 2: Convert to fraction form
    6,475.20/9,722.56 = 5,172.80/x
  3. Step 3: Cross multiply
    6,475.20x = 9,722.56 × 5,172.80
  4. Step 4: Simplify right side
    6,475.20x = 50,292,858.37
  5. Step 5: Solve for x
    x = 50,292,858.37/6,475.20
  6. Step 6: Final answer
    x = 7,767.00

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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.