Home / 15,054.30-20,770.68-9,003.80

Finding the Fourth Proportional to 15,054.30, 20,770.68 and 9,003.80

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Solution

The fourth proportional to 15,054.30, 20,770.68 and 9,003.80 is: 12,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.30 : 20,770.68 = 9,003.80 : x
  2. Step 2: Convert to fraction form
    15,054.30/20,770.68 = 9,003.80/x
  3. Step 3: Cross multiply
    15,054.30x = 20,770.68 × 9,003.80
  4. Step 4: Simplify right side
    15,054.30x = 187,015,048.58
  5. Step 5: Solve for x
    x = 187,015,048.58/15,054.30
  6. Step 6: Final answer
    x = 12,422.70

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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.