Home / 15,413.91-23,119.67-4,320.01

Finding the Fourth Proportional to 15,413.91, 23,119.67 and 4,320.01

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Solution

The fourth proportional to 15,413.91, 23,119.67 and 4,320.01 is: 6,479.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413.91 : 23,119.67 = 4,320.01 : x
  2. Step 2: Convert to fraction form
    15,413.91/23,119.67 = 4,320.01/x
  3. Step 3: Cross multiply
    15,413.91x = 23,119.67 × 4,320.01
  4. Step 4: Simplify right side
    15,413.91x = 99,877,149.90
  5. Step 5: Solve for x
    x = 99,877,149.90/15,413.91
  6. Step 6: Final answer
    x = 6,479.68

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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.