Home / 7,869.45-10,859.87-4,284.43

Finding the Fourth Proportional to 7,869.45, 10,859.87 and 4,284.43

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Solution

The fourth proportional to 7,869.45, 10,859.87 and 4,284.43 is: 5,912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.45 : 10,859.87 = 4,284.43 : x
  2. Step 2: Convert to fraction form
    7,869.45/10,859.87 = 4,284.43/x
  3. Step 3: Cross multiply
    7,869.45x = 10,859.87 × 4,284.43
  4. Step 4: Simplify right side
    7,869.45x = 46,528,336.39
  5. Step 5: Solve for x
    x = 46,528,336.39/7,869.45
  6. Step 6: Final answer
    x = 5,912.52

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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.