Home / 7,329.69-10,128.36-5,336.77

Finding the Fourth Proportional to 7,329.69, 10,128.36 and 5,336.77

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Solution

The fourth proportional to 7,329.69, 10,128.36 and 5,336.77 is: 7,374.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.69 : 10,128.36 = 5,336.77 : x
  2. Step 2: Convert to fraction form
    7,329.69/10,128.36 = 5,336.77/x
  3. Step 3: Cross multiply
    7,329.69x = 10,128.36 × 5,336.77
  4. Step 4: Simplify right side
    7,329.69x = 54,052,727.80
  5. Step 5: Solve for x
    x = 54,052,727.80/7,329.69
  6. Step 6: Final answer
    x = 7,374.49

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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.