Home / 8,975.09-13,458.54-3,130.33

Finding the Fourth Proportional to 8,975.09, 13,458.54 and 3,130.33

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Solution

The fourth proportional to 8,975.09, 13,458.54 and 3,130.33 is: 4,694.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.09 : 13,458.54 = 3,130.33 : x
  2. Step 2: Convert to fraction form
    8,975.09/13,458.54 = 3,130.33/x
  3. Step 3: Cross multiply
    8,975.09x = 13,458.54 × 3,130.33
  4. Step 4: Simplify right side
    8,975.09x = 42,129,671.52
  5. Step 5: Solve for x
    x = 42,129,671.52/8,975.09
  6. Step 6: Final answer
    x = 4,694.07

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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.