Home / 7,837.68-10,815.80-4,388.22

Finding the Fourth Proportional to 7,837.68, 10,815.80 and 4,388.22

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Solution

The fourth proportional to 7,837.68, 10,815.80 and 4,388.22 is: 6,055.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.68 : 10,815.80 = 4,388.22 : x
  2. Step 2: Convert to fraction form
    7,837.68/10,815.80 = 4,388.22/x
  3. Step 3: Cross multiply
    7,837.68x = 10,815.80 × 4,388.22
  4. Step 4: Simplify right side
    7,837.68x = 47,462,033.86
  5. Step 5: Solve for x
    x = 47,462,033.86/7,837.68
  6. Step 6: Final answer
    x = 6,055.62

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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.