Home / 7,825.20-10,778.04-5,829.36

Finding the Fourth Proportional to 7,825.20, 10,778.04 and 5,829.36

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Solution

The fourth proportional to 7,825.20, 10,778.04 and 5,829.36 is: 8,029.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.20 : 10,778.04 = 5,829.36 : x
  2. Step 2: Convert to fraction form
    7,825.20/10,778.04 = 5,829.36/x
  3. Step 3: Cross multiply
    7,825.20x = 10,778.04 × 5,829.36
  4. Step 4: Simplify right side
    7,825.20x = 62,829,075.25
  5. Step 5: Solve for x
    x = 62,829,075.25/7,825.20
  6. Step 6: Final answer
    x = 8,029.07

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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.