Home / 12,702.48-19,055.52-3,938.13

Finding the Fourth Proportional to 12,702.48, 19,055.52 and 3,938.13

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Solution

The fourth proportional to 12,702.48, 19,055.52 and 3,938.13 is: 5,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,702.48 : 19,055.52 = 3,938.13 : x
  2. Step 2: Convert to fraction form
    12,702.48/19,055.52 = 3,938.13/x
  3. Step 3: Cross multiply
    12,702.48x = 19,055.52 × 3,938.13
  4. Step 4: Simplify right side
    12,702.48x = 75,043,114.98
  5. Step 5: Solve for x
    x = 75,043,114.98/12,702.48
  6. Step 6: Final answer
    x = 5,907.75

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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.