Home / 12,777.69-19,169.60-5,384.26

Finding the Fourth Proportional to 12,777.69, 19,169.60 and 5,384.26

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Solution

The fourth proportional to 12,777.69, 19,169.60 and 5,384.26 is: 8,077.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.69 : 19,169.60 = 5,384.26 : x
  2. Step 2: Convert to fraction form
    12,777.69/19,169.60 = 5,384.26/x
  3. Step 3: Cross multiply
    12,777.69x = 19,169.60 × 5,384.26
  4. Step 4: Simplify right side
    12,777.69x = 103,214,110.50
  5. Step 5: Solve for x
    x = 103,214,110.50/12,777.69
  6. Step 6: Final answer
    x = 8,077.68

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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.