Home / 7,829.24-11,739.54-3,215.48

Finding the Fourth Proportional to 7,829.24, 11,739.54 and 3,215.48

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Solution

The fourth proportional to 7,829.24, 11,739.54 and 3,215.48 is: 4,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,829.24 : 11,739.54 = 3,215.48 : x
  2. Step 2: Convert to fraction form
    7,829.24/11,739.54 = 3,215.48/x
  3. Step 3: Cross multiply
    7,829.24x = 11,739.54 × 3,215.48
  4. Step 4: Simplify right side
    7,829.24x = 37,748,256.08
  5. Step 5: Solve for x
    x = 37,748,256.08/7,829.24
  6. Step 6: Final answer
    x = 4,821.45

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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.