Home / 12,450.93-18,678.74-5,430.93

Finding the Fourth Proportional to 12,450.93, 18,678.74 and 5,430.93

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Solution

The fourth proportional to 12,450.93, 18,678.74 and 5,430.93 is: 8,147.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.93 : 18,678.74 = 5,430.93 : x
  2. Step 2: Convert to fraction form
    12,450.93/18,678.74 = 5,430.93/x
  3. Step 3: Cross multiply
    12,450.93x = 18,678.74 × 5,430.93
  4. Step 4: Simplify right side
    12,450.93x = 101,442,902.27
  5. Step 5: Solve for x
    x = 101,442,902.27/12,450.93
  6. Step 6: Final answer
    x = 8,147.42

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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.