Home / 7,148.44-9,864.30-4,004.20

Finding the Fourth Proportional to 7,148.44, 9,864.30 and 4,004.20

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Solution

The fourth proportional to 7,148.44, 9,864.30 and 4,004.20 is: 5,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.44 : 9,864.30 = 4,004.20 : x
  2. Step 2: Convert to fraction form
    7,148.44/9,864.30 = 4,004.20/x
  3. Step 3: Cross multiply
    7,148.44x = 9,864.30 × 4,004.20
  4. Step 4: Simplify right side
    7,148.44x = 39,498,630.06
  5. Step 5: Solve for x
    x = 39,498,630.06/7,148.44
  6. Step 6: Final answer
    x = 5,525.49

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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.