Home / 13,149.04-19,722.48-3,915.04

Finding the Fourth Proportional to 13,149.04, 19,722.48 and 3,915.04

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Solution

The fourth proportional to 13,149.04, 19,722.48 and 3,915.04 is: 5,872.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.04 : 19,722.48 = 3,915.04 : x
  2. Step 2: Convert to fraction form
    13,149.04/19,722.48 = 3,915.04/x
  3. Step 3: Cross multiply
    13,149.04x = 19,722.48 × 3,915.04
  4. Step 4: Simplify right side
    13,149.04x = 77,214,298.10
  5. Step 5: Solve for x
    x = 77,214,298.10/13,149.04
  6. Step 6: Final answer
    x = 5,872.24

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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.