Home / 13,990.16-19,306.44-7,702.54

Finding the Fourth Proportional to 13,990.16, 19,306.44 and 7,702.54

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Solution

The fourth proportional to 13,990.16, 19,306.44 and 7,702.54 is: 10,629.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.16 : 19,306.44 = 7,702.54 : x
  2. Step 2: Convert to fraction form
    13,990.16/19,306.44 = 7,702.54/x
  3. Step 3: Cross multiply
    13,990.16x = 19,306.44 × 7,702.54
  4. Step 4: Simplify right side
    13,990.16x = 148,708,578.09
  5. Step 5: Solve for x
    x = 148,708,578.09/13,990.16
  6. Step 6: Final answer
    x = 10,629.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.