Home / 15,218.42-21,001.59-8,413.29

Finding the Fourth Proportional to 15,218.42, 21,001.59 and 8,413.29

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Solution

The fourth proportional to 15,218.42, 21,001.59 and 8,413.29 is: 11,610.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218.42 : 21,001.59 = 8,413.29 : x
  2. Step 2: Convert to fraction form
    15,218.42/21,001.59 = 8,413.29/x
  3. Step 3: Cross multiply
    15,218.42x = 21,001.59 × 8,413.29
  4. Step 4: Simplify right side
    15,218.42x = 176,692,467.13
  5. Step 5: Solve for x
    x = 176,692,467.13/15,218.42
  6. Step 6: Final answer
    x = 11,610.43

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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.