Home / 18,767.54-25,890.08-12,396.62

Finding the Fourth Proportional to 18,767.54, 25,890.08 and 12,396.62

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Solution

The fourth proportional to 18,767.54, 25,890.08 and 12,396.62 is: 17,101.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.54 : 25,890.08 = 12,396.62 : x
  2. Step 2: Convert to fraction form
    18,767.54/25,890.08 = 12,396.62/x
  3. Step 3: Cross multiply
    18,767.54x = 25,890.08 × 12,396.62
  4. Step 4: Simplify right side
    18,767.54x = 320,949,483.53
  5. Step 5: Solve for x
    x = 320,949,483.53/18,767.54
  6. Step 6: Final answer
    x = 17,101.31

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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.