Home / 8,938.74-13,409.19-4,318.50

Finding the Fourth Proportional to 8,938.74, 13,409.19 and 4,318.50

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Solution

The fourth proportional to 8,938.74, 13,409.19 and 4,318.50 is: 6,478.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.74 : 13,409.19 = 4,318.50 : x
  2. Step 2: Convert to fraction form
    8,938.74/13,409.19 = 4,318.50/x
  3. Step 3: Cross multiply
    8,938.74x = 13,409.19 × 4,318.50
  4. Step 4: Simplify right side
    8,938.74x = 57,907,587.02
  5. Step 5: Solve for x
    x = 57,907,587.02/8,938.74
  6. Step 6: Final answer
    x = 6,478.27

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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.