Home / 13,068.80-19,611.60-7,229.60

Finding the Fourth Proportional to 13,068.80, 19,611.60 and 7,229.60

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Solution

The fourth proportional to 13,068.80, 19,611.60 and 7,229.60 is: 10,849.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,068.80 : 19,611.60 = 7,229.60 : x
  2. Step 2: Convert to fraction form
    13,068.80/19,611.60 = 7,229.60/x
  3. Step 3: Cross multiply
    13,068.80x = 19,611.60 × 7,229.60
  4. Step 4: Simplify right side
    13,068.80x = 141,784,023.36
  5. Step 5: Solve for x
    x = 141,784,023.36/13,068.80
  6. Step 6: Final answer
    x = 10,849.05

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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.