Home / 13,880.70-20,840.58-8,043.84

Finding the Fourth Proportional to 13,880.70, 20,840.58 and 8,043.84

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Solution

The fourth proportional to 13,880.70, 20,840.58 and 8,043.84 is: 12,077.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.70 : 20,840.58 = 8,043.84 : x
  2. Step 2: Convert to fraction form
    13,880.70/20,840.58 = 8,043.84/x
  3. Step 3: Cross multiply
    13,880.70x = 20,840.58 × 8,043.84
  4. Step 4: Simplify right side
    13,880.70x = 167,638,291.03
  5. Step 5: Solve for x
    x = 167,638,291.03/13,880.70
  6. Step 6: Final answer
    x = 12,077.08

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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.