Home / 7,152.74-10,717.42-6,879.36

Finding the Fourth Proportional to 7,152.74, 10,717.42 and 6,879.36

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Solution

The fourth proportional to 7,152.74, 10,717.42 and 6,879.36 is: 10,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.74 : 10,717.42 = 6,879.36 : x
  2. Step 2: Convert to fraction form
    7,152.74/10,717.42 = 6,879.36/x
  3. Step 3: Cross multiply
    7,152.74x = 10,717.42 × 6,879.36
  4. Step 4: Simplify right side
    7,152.74x = 73,728,990.45
  5. Step 5: Solve for x
    x = 73,728,990.45/7,152.74
  6. Step 6: Final answer
    x = 10,307.80

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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.