Home / 7,698.40-10,623.78-4,161.61

Finding the Fourth Proportional to 7,698.40, 10,623.78 and 4,161.61

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Solution

The fourth proportional to 7,698.40, 10,623.78 and 4,161.61 is: 5,743.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,698.40 : 10,623.78 = 4,161.61 : x
  2. Step 2: Convert to fraction form
    7,698.40/10,623.78 = 4,161.61/x
  3. Step 3: Cross multiply
    7,698.40x = 10,623.78 × 4,161.61
  4. Step 4: Simplify right side
    7,698.40x = 44,211,955.16
  5. Step 5: Solve for x
    x = 44,211,955.16/7,698.40
  6. Step 6: Final answer
    x = 5,743.01

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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.