Home / 19,210.02-28,815.06-12,665.44

Finding the Fourth Proportional to 19,210.02, 28,815.06 and 12,665.44

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Solution

The fourth proportional to 19,210.02, 28,815.06 and 12,665.44 is: 18,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.02 : 28,815.06 = 12,665.44 : x
  2. Step 2: Convert to fraction form
    19,210.02/28,815.06 = 12,665.44/x
  3. Step 3: Cross multiply
    19,210.02x = 28,815.06 × 12,665.44
  4. Step 4: Simplify right side
    19,210.02x = 364,955,413.53
  5. Step 5: Solve for x
    x = 364,955,413.53/19,210.02
  6. Step 6: Final answer
    x = 18,998.18

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1.5x scale

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.