Home / 13,644.90-20,462.55-4,880.10

Finding the Fourth Proportional to 13,644.90, 20,462.55 and 4,880.10

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Solution

The fourth proportional to 13,644.90, 20,462.55 and 4,880.10 is: 7,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.90 : 20,462.55 = 4,880.10 : x
  2. Step 2: Convert to fraction form
    13,644.90/20,462.55 = 4,880.10/x
  3. Step 3: Cross multiply
    13,644.90x = 20,462.55 × 4,880.10
  4. Step 4: Simplify right side
    13,644.90x = 99,859,290.26
  5. Step 5: Solve for x
    x = 99,859,290.26/13,644.90
  6. Step 6: Final answer
    x = 7,318.43

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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.