Home / 15,186.02-20,956.73-8,379.88

Finding the Fourth Proportional to 15,186.02, 20,956.73 and 8,379.88

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Solution

The fourth proportional to 15,186.02, 20,956.73 and 8,379.88 is: 11,564.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,186.02 : 20,956.73 = 8,379.88 : x
  2. Step 2: Convert to fraction form
    15,186.02/20,956.73 = 8,379.88/x
  3. Step 3: Cross multiply
    15,186.02x = 20,956.73 × 8,379.88
  4. Step 4: Simplify right side
    15,186.02x = 175,614,788.30
  5. Step 5: Solve for x
    x = 175,614,788.30/15,186.02
  6. Step 6: Final answer
    x = 11,564.24

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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.