Home / 19,079.80-28,611.60-9,222.10

Finding the Fourth Proportional to 19,079.80, 28,611.60 and 9,222.10

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Solution

The fourth proportional to 19,079.80, 28,611.60 and 9,222.10 is: 13,829.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,079.80 : 28,611.60 = 9,222.10 : x
  2. Step 2: Convert to fraction form
    19,079.80/28,611.60 = 9,222.10/x
  3. Step 3: Cross multiply
    19,079.80x = 28,611.60 × 9,222.10
  4. Step 4: Simplify right side
    19,079.80x = 263,859,036.36
  5. Step 5: Solve for x
    x = 263,859,036.36/19,079.80
  6. Step 6: Final answer
    x = 13,829.23

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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.