Home / 19,109.26-28,665.70-7,423.38

Finding the Fourth Proportional to 19,109.26, 28,665.70 and 7,423.38

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Solution

The fourth proportional to 19,109.26, 28,665.70 and 7,423.38 is: 11,135.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.26 : 28,665.70 = 7,423.38 : x
  2. Step 2: Convert to fraction form
    19,109.26/28,665.70 = 7,423.38/x
  3. Step 3: Cross multiply
    19,109.26x = 28,665.70 × 7,423.38
  4. Step 4: Simplify right side
    19,109.26x = 212,796,384.07
  5. Step 5: Solve for x
    x = 212,796,384.07/19,109.26
  6. Step 6: Final answer
    x = 11,135.77

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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.