Home / 16,413.65-24,621.95-12,720.02

Finding the Fourth Proportional to 16,413.65, 24,621.95 and 12,720.02

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Solution

The fourth proportional to 16,413.65, 24,621.95 and 12,720.02 is: 19,081.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,413.65 : 24,621.95 = 12,720.02 : x
  2. Step 2: Convert to fraction form
    16,413.65/24,621.95 = 12,720.02/x
  3. Step 3: Cross multiply
    16,413.65x = 24,621.95 × 12,720.02
  4. Step 4: Simplify right side
    16,413.65x = 313,191,605.13
  5. Step 5: Solve for x
    x = 313,191,605.13/16,413.65
  6. Step 6: Final answer
    x = 19,081.17

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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.