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Finding the Fourth Proportional to 13,968.95, 20,953.23 and 5,648.90

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Solution

The fourth proportional to 13,968.95, 20,953.23 and 5,648.90 is: 8,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.95 : 20,953.23 = 5,648.90 : x
  2. Step 2: Convert to fraction form
    13,968.95/20,953.23 = 5,648.90/x
  3. Step 3: Cross multiply
    13,968.95x = 20,953.23 × 5,648.90
  4. Step 4: Simplify right side
    13,968.95x = 118,362,596.18
  5. Step 5: Solve for x
    x = 118,362,596.18/13,968.95
  6. Step 6: Final answer
    x = 8,473.27

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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.