Home / 9,120.24-12,585.92-4,928.49

Finding the Fourth Proportional to 9,120.24, 12,585.92 and 4,928.49

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Solution

The fourth proportional to 9,120.24, 12,585.92 and 4,928.49 is: 6,801.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.24 : 12,585.92 = 4,928.49 : x
  2. Step 2: Convert to fraction form
    9,120.24/12,585.92 = 4,928.49/x
  3. Step 3: Cross multiply
    9,120.24x = 12,585.92 × 4,928.49
  4. Step 4: Simplify right side
    9,120.24x = 62,029,556.22
  5. Step 5: Solve for x
    x = 62,029,556.22/9,120.24
  6. Step 6: Final answer
    x = 6,801.31

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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.