Home / 7,647.28-10,550.84-4,289.60

Finding the Fourth Proportional to 7,647.28, 10,550.84 and 4,289.60

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Solution

The fourth proportional to 7,647.28, 10,550.84 and 4,289.60 is: 5,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.28 : 10,550.84 = 4,289.60 : x
  2. Step 2: Convert to fraction form
    7,647.28/10,550.84 = 4,289.60/x
  3. Step 3: Cross multiply
    7,647.28x = 10,550.84 × 4,289.60
  4. Step 4: Simplify right side
    7,647.28x = 45,258,883.26
  5. Step 5: Solve for x
    x = 45,258,883.26/7,647.28
  6. Step 6: Final answer
    x = 5,918.30

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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.