Home / 18,590.48-25,648.62-11,880.04

Finding the Fourth Proportional to 18,590.48, 25,648.62 and 11,880.04

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Solution

The fourth proportional to 18,590.48, 25,648.62 and 11,880.04 is: 16,390.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.48 : 25,648.62 = 11,880.04 : x
  2. Step 2: Convert to fraction form
    18,590.48/25,648.62 = 11,880.04/x
  3. Step 3: Cross multiply
    18,590.48x = 25,648.62 × 11,880.04
  4. Step 4: Simplify right side
    18,590.48x = 304,706,631.54
  5. Step 5: Solve for x
    x = 304,706,631.54/18,590.48
  6. Step 6: Final answer
    x = 16,390.47

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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.