Home / 12,090.10-18,134.91-7,956.22

Finding the Fourth Proportional to 12,090.10, 18,134.91 and 7,956.22

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Solution

The fourth proportional to 12,090.10, 18,134.91 and 7,956.22 is: 11,934.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.10 : 18,134.91 = 7,956.22 : x
  2. Step 2: Convert to fraction form
    12,090.10/18,134.91 = 7,956.22/x
  3. Step 3: Cross multiply
    12,090.10x = 18,134.91 × 7,956.22
  4. Step 4: Simplify right side
    12,090.10x = 144,285,333.64
  5. Step 5: Solve for x
    x = 144,285,333.64/12,090.10
  6. Step 6: Final answer
    x = 11,934.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.