Home / 15,487.24-21,371.84-8,413.52

Finding the Fourth Proportional to 15,487.24, 21,371.84 and 8,413.52

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Solution

The fourth proportional to 15,487.24, 21,371.84 and 8,413.52 is: 11,610.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487.24 : 21,371.84 = 8,413.52 : x
  2. Step 2: Convert to fraction form
    15,487.24/21,371.84 = 8,413.52/x
  3. Step 3: Cross multiply
    15,487.24x = 21,371.84 × 8,413.52
  4. Step 4: Simplify right side
    15,487.24x = 179,812,403.28
  5. Step 5: Solve for x
    x = 179,812,403.28/15,487.24
  6. Step 6: Final answer
    x = 11,610.36

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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.