Home / 8,986.29-13,470.18-3,438.12

Finding the Fourth Proportional to 8,986.29, 13,470.18 and 3,438.12

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Solution

The fourth proportional to 8,986.29, 13,470.18 and 3,438.12 is: 5,153.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.29 : 13,470.18 = 3,438.12 : x
  2. Step 2: Convert to fraction form
    8,986.29/13,470.18 = 3,438.12/x
  3. Step 3: Cross multiply
    8,986.29x = 13,470.18 × 3,438.12
  4. Step 4: Simplify right side
    8,986.29x = 46,312,095.26
  5. Step 5: Solve for x
    x = 46,312,095.26/8,986.29
  6. Step 6: Final answer
    x = 5,153.64

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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.