Home / 9,578.37-13,218.84-5,329.77

Finding the Fourth Proportional to 9,578.37, 13,218.84 and 5,329.77

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Solution

The fourth proportional to 9,578.37, 13,218.84 and 5,329.77 is: 7,355.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,578.37 : 13,218.84 = 5,329.77 : x
  2. Step 2: Convert to fraction form
    9,578.37/13,218.84 = 5,329.77/x
  3. Step 3: Cross multiply
    9,578.37x = 13,218.84 × 5,329.77
  4. Step 4: Simplify right side
    9,578.37x = 70,453,376.87
  5. Step 5: Solve for x
    x = 70,453,376.87/9,578.37
  6. Step 6: Final answer
    x = 7,355.47

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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.