Home / 7,126.28-10,678.48-4,348.79

Finding the Fourth Proportional to 7,126.28, 10,678.48 and 4,348.79

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Solution

The fourth proportional to 7,126.28, 10,678.48 and 4,348.79 is: 6,516.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.28 : 10,678.48 = 4,348.79 : x
  2. Step 2: Convert to fraction form
    7,126.28/10,678.48 = 4,348.79/x
  3. Step 3: Cross multiply
    7,126.28x = 10,678.48 × 4,348.79
  4. Step 4: Simplify right side
    7,126.28x = 46,438,467.04
  5. Step 5: Solve for x
    x = 46,438,467.04/7,126.28
  6. Step 6: Final answer
    x = 6,516.51

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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.