Home / 7,784.12-10,742.22-4,247.36

Finding the Fourth Proportional to 7,784.12, 10,742.22 and 4,247.36

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Solution

The fourth proportional to 7,784.12, 10,742.22 and 4,247.36 is: 5,861.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.12 : 10,742.22 = 4,247.36 : x
  2. Step 2: Convert to fraction form
    7,784.12/10,742.22 = 4,247.36/x
  3. Step 3: Cross multiply
    7,784.12x = 10,742.22 × 4,247.36
  4. Step 4: Simplify right side
    7,784.12x = 45,626,075.54
  5. Step 5: Solve for x
    x = 45,626,075.54/7,784.12
  6. Step 6: Final answer
    x = 5,861.43

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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.