Home / 12,930.90-19,379.88-5,533.44

Finding the Fourth Proportional to 12,930.90, 19,379.88 and 5,533.44

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Solution

The fourth proportional to 12,930.90, 19,379.88 and 5,533.44 is: 8,293.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.90 : 19,379.88 = 5,533.44 : x
  2. Step 2: Convert to fraction form
    12,930.90/19,379.88 = 5,533.44/x
  3. Step 3: Cross multiply
    12,930.90x = 19,379.88 × 5,533.44
  4. Step 4: Simplify right side
    12,930.90x = 107,237,403.19
  5. Step 5: Solve for x
    x = 107,237,403.19/12,930.90
  6. Step 6: Final answer
    x = 8,293.11

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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.