Home / 18,630.12-25,696.55-12,651.41

Finding the Fourth Proportional to 18,630.12, 25,696.55 and 12,651.41

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Solution

The fourth proportional to 18,630.12, 25,696.55 and 12,651.41 is: 17,450.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.12 : 25,696.55 = 12,651.41 : x
  2. Step 2: Convert to fraction form
    18,630.12/25,696.55 = 12,651.41/x
  3. Step 3: Cross multiply
    18,630.12x = 25,696.55 × 12,651.41
  4. Step 4: Simplify right side
    18,630.12x = 325,097,685.51
  5. Step 5: Solve for x
    x = 325,097,685.51/18,630.12
  6. Step 6: Final answer
    x = 17,450.11

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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.