Home / 15,369.48-21,207.42-8,996.40

Finding the Fourth Proportional to 15,369.48, 21,207.42 and 8,996.40

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Solution

The fourth proportional to 15,369.48, 21,207.42 and 8,996.40 is: 12,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,369.48 : 21,207.42 = 8,996.40 : x
  2. Step 2: Convert to fraction form
    15,369.48/21,207.42 = 8,996.40/x
  3. Step 3: Cross multiply
    15,369.48x = 21,207.42 × 8,996.40
  4. Step 4: Simplify right side
    15,369.48x = 190,790,433.29
  5. Step 5: Solve for x
    x = 190,790,433.29/15,369.48
  6. Step 6: Final answer
    x = 12,413.59

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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.