Home / 8,980.56-13,470.75-4,286.34

Finding the Fourth Proportional to 8,980.56, 13,470.75 and 4,286.34

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Solution

The fourth proportional to 8,980.56, 13,470.75 and 4,286.34 is: 6,429.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.56 : 13,470.75 = 4,286.34 : x
  2. Step 2: Convert to fraction form
    8,980.56/13,470.75 = 4,286.34/x
  3. Step 3: Cross multiply
    8,980.56x = 13,470.75 × 4,286.34
  4. Step 4: Simplify right side
    8,980.56x = 57,740,214.56
  5. Step 5: Solve for x
    x = 57,740,214.56/8,980.56
  6. Step 6: Final answer
    x = 6,429.47

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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.