Home / 19,125.70-28,698.38-7,889.33

Finding the Fourth Proportional to 19,125.70, 28,698.38 and 7,889.33

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Solution

The fourth proportional to 19,125.70, 28,698.38 and 7,889.33 is: 11,838.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125.70 : 28,698.38 = 7,889.33 : x
  2. Step 2: Convert to fraction form
    19,125.70/28,698.38 = 7,889.33/x
  3. Step 3: Cross multiply
    19,125.70x = 28,698.38 × 7,889.33
  4. Step 4: Simplify right side
    19,125.70x = 226,411,096.55
  5. Step 5: Solve for x
    x = 226,411,096.55/19,125.70
  6. Step 6: Final answer
    x = 11,838.05

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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.