Home / 13,143.06-19,702.86-4,821.13

Finding the Fourth Proportional to 13,143.06, 19,702.86 and 4,821.13

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Solution

The fourth proportional to 13,143.06, 19,702.86 and 4,821.13 is: 7,227.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.06 : 19,702.86 = 4,821.13 : x
  2. Step 2: Convert to fraction form
    13,143.06/19,702.86 = 4,821.13/x
  3. Step 3: Cross multiply
    13,143.06x = 19,702.86 × 4,821.13
  4. Step 4: Simplify right side
    13,143.06x = 94,990,049.43
  5. Step 5: Solve for x
    x = 94,990,049.43/13,143.06
  6. Step 6: Final answer
    x = 7,227.39

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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.