Home / 8,986.79-13,470.93-3,438.63

Finding the Fourth Proportional to 8,986.79, 13,470.93 and 3,438.63

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Solution

The fourth proportional to 8,986.79, 13,470.93 and 3,438.63 is: 5,154.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.79 : 13,470.93 = 3,438.63 : x
  2. Step 2: Convert to fraction form
    8,986.79/13,470.93 = 3,438.63/x
  3. Step 3: Cross multiply
    8,986.79x = 13,470.93 × 3,438.63
  4. Step 4: Simplify right side
    8,986.79x = 46,321,544.03
  5. Step 5: Solve for x
    x = 46,321,544.03/8,986.79
  6. Step 6: Final answer
    x = 5,154.41

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1.5x scale

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.