Home / 19,007.46-28,499.04-7,921.80

Finding the Fourth Proportional to 19,007.46, 28,499.04 and 7,921.80

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Solution

The fourth proportional to 19,007.46, 28,499.04 and 7,921.80 is: 11,877.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.46 : 28,499.04 = 7,921.80 : x
  2. Step 2: Convert to fraction form
    19,007.46/28,499.04 = 7,921.80/x
  3. Step 3: Cross multiply
    19,007.46x = 28,499.04 × 7,921.80
  4. Step 4: Simplify right side
    19,007.46x = 225,763,695.07
  5. Step 5: Solve for x
    x = 225,763,695.07/19,007.46
  6. Step 6: Final answer
    x = 11,877.64

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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.