Home / 19,615.15-29,413.46-7,126.47

Finding the Fourth Proportional to 19,615.15, 29,413.46 and 7,126.47

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Solution

The fourth proportional to 19,615.15, 29,413.46 and 7,126.47 is: 10,686.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.15 : 29,413.46 = 7,126.47 : x
  2. Step 2: Convert to fraction form
    19,615.15/29,413.46 = 7,126.47/x
  3. Step 3: Cross multiply
    19,615.15x = 29,413.46 × 7,126.47
  4. Step 4: Simplify right side
    19,615.15x = 209,613,957.59
  5. Step 5: Solve for x
    x = 209,613,957.59/19,615.15
  6. Step 6: Final answer
    x = 10,686.33

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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.