Home / 12,287.14-18,428.81-4,494.13

Finding the Fourth Proportional to 12,287.14, 18,428.81 and 4,494.13

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Solution

The fourth proportional to 12,287.14, 18,428.81 and 4,494.13 is: 6,740.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,287.14 : 18,428.81 = 4,494.13 : x
  2. Step 2: Convert to fraction form
    12,287.14/18,428.81 = 4,494.13/x
  3. Step 3: Cross multiply
    12,287.14x = 18,428.81 × 4,494.13
  4. Step 4: Simplify right side
    12,287.14x = 82,821,467.89
  5. Step 5: Solve for x
    x = 82,821,467.89/12,287.14
  6. Step 6: Final answer
    x = 6,740.50

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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.