Home / 13,902.65-19,180.89-7,930.02

Finding the Fourth Proportional to 13,902.65, 19,180.89 and 7,930.02

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Solution

The fourth proportional to 13,902.65, 19,180.89 and 7,930.02 is: 10,940.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.65 : 19,180.89 = 7,930.02 : x
  2. Step 2: Convert to fraction form
    13,902.65/19,180.89 = 7,930.02/x
  3. Step 3: Cross multiply
    13,902.65x = 19,180.89 × 7,930.02
  4. Step 4: Simplify right side
    13,902.65x = 152,104,841.32
  5. Step 5: Solve for x
    x = 152,104,841.32/13,902.65
  6. Step 6: Final answer
    x = 10,940.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.