Home / 15,127.84-20,876.43-8,413.46

Finding the Fourth Proportional to 15,127.84, 20,876.43 and 8,413.46

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Solution

The fourth proportional to 15,127.84, 20,876.43 and 8,413.46 is: 11,610.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,127.84 : 20,876.43 = 8,413.46 : x
  2. Step 2: Convert to fraction form
    15,127.84/20,876.43 = 8,413.46/x
  3. Step 3: Cross multiply
    15,127.84x = 20,876.43 × 8,413.46
  4. Step 4: Simplify right side
    15,127.84x = 175,643,008.75
  5. Step 5: Solve for x
    x = 175,643,008.75/15,127.84
  6. Step 6: Final answer
    x = 11,610.58

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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.