Home / 7,738.25-10,668.81-6,320.45

Finding the Fourth Proportional to 7,738.25, 10,668.81 and 6,320.45

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Solution

The fourth proportional to 7,738.25, 10,668.81 and 6,320.45 is: 8,714.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.25 : 10,668.81 = 6,320.45 : x
  2. Step 2: Convert to fraction form
    7,738.25/10,668.81 = 6,320.45/x
  3. Step 3: Cross multiply
    7,738.25x = 10,668.81 × 6,320.45
  4. Step 4: Simplify right side
    7,738.25x = 67,431,680.16
  5. Step 5: Solve for x
    x = 67,431,680.16/7,738.25
  6. Step 6: Final answer
    x = 8,714.07

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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.