Home / 13,972.22-19,281.38-7,684.60

Finding the Fourth Proportional to 13,972.22, 19,281.38 and 7,684.60

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Solution

The fourth proportional to 13,972.22, 19,281.38 and 7,684.60 is: 10,604.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.22 : 19,281.38 = 7,684.60 : x
  2. Step 2: Convert to fraction form
    13,972.22/19,281.38 = 7,684.60/x
  3. Step 3: Cross multiply
    13,972.22x = 19,281.38 × 7,684.60
  4. Step 4: Simplify right side
    13,972.22x = 148,169,692.75
  5. Step 5: Solve for x
    x = 148,169,692.75/13,972.22
  6. Step 6: Final answer
    x = 10,604.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.