Home / 7,115.85-9,809.37-4,563.36

Finding the Fourth Proportional to 7,115.85, 9,809.37 and 4,563.36

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Solution

The fourth proportional to 7,115.85, 9,809.37 and 4,563.36 is: 6,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.85 : 9,809.37 = 4,563.36 : x
  2. Step 2: Convert to fraction form
    7,115.85/9,809.37 = 4,563.36/x
  3. Step 3: Cross multiply
    7,115.85x = 9,809.37 × 4,563.36
  4. Step 4: Simplify right side
    7,115.85x = 44,763,686.68
  5. Step 5: Solve for x
    x = 44,763,686.68/7,115.85
  6. Step 6: Final answer
    x = 6,290.70

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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.