Home / 12,450.54-18,678.60-4,659.42

Finding the Fourth Proportional to 12,450.54, 18,678.60 and 4,659.42

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Solution

The fourth proportional to 12,450.54, 18,678.60 and 4,659.42 is: 6,990.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.54 : 18,678.60 = 4,659.42 : x
  2. Step 2: Convert to fraction form
    12,450.54/18,678.60 = 4,659.42/x
  3. Step 3: Cross multiply
    12,450.54x = 18,678.60 × 4,659.42
  4. Step 4: Simplify right side
    12,450.54x = 87,031,442.41
  5. Step 5: Solve for x
    x = 87,031,442.41/12,450.54
  6. Step 6: Final answer
    x = 6,990.17

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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.