Home / 13,019.20-19,528.80-12,824.80

Finding the Fourth Proportional to 13,019.20, 19,528.80 and 12,824.80

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Solution

The fourth proportional to 13,019.20, 19,528.80 and 12,824.80 is: 19,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.20 : 19,528.80 = 12,824.80 : x
  2. Step 2: Convert to fraction form
    13,019.20/19,528.80 = 12,824.80/x
  3. Step 3: Cross multiply
    13,019.20x = 19,528.80 × 12,824.80
  4. Step 4: Simplify right side
    13,019.20x = 250,452,954.24
  5. Step 5: Solve for x
    x = 250,452,954.24/13,019.20
  6. Step 6: Final answer
    x = 19,237.20

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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.