Home / 14,100.12-19,413.84-11,971.20

Finding the Fourth Proportional to 14,100.12, 19,413.84 and 11,971.20

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Solution

The fourth proportional to 14,100.12, 19,413.84 and 11,971.20 is: 16,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,100.12 : 19,413.84 = 11,971.20 : x
  2. Step 2: Convert to fraction form
    14,100.12/19,413.84 = 11,971.20/x
  3. Step 3: Cross multiply
    14,100.12x = 19,413.84 × 11,971.20
  4. Step 4: Simplify right side
    14,100.12x = 232,406,961.41
  5. Step 5: Solve for x
    x = 232,406,961.41/14,100.12
  6. Step 6: Final answer
    x = 16,482.62

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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.