Home / 15,116.80-20,860.86-8,744.26

Finding the Fourth Proportional to 15,116.80, 20,860.86 and 8,744.26

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Solution

The fourth proportional to 15,116.80, 20,860.86 and 8,744.26 is: 12,066.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,116.80 : 20,860.86 = 8,744.26 : x
  2. Step 2: Convert to fraction form
    15,116.80/20,860.86 = 8,744.26/x
  3. Step 3: Cross multiply
    15,116.80x = 20,860.86 × 8,744.26
  4. Step 4: Simplify right side
    15,116.80x = 182,412,783.66
  5. Step 5: Solve for x
    x = 182,412,783.66/15,116.80
  6. Step 6: Final answer
    x = 12,066.89

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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.