Home / 19,686.16-29,529.20-7,996.64

Finding the Fourth Proportional to 19,686.16, 29,529.20 and 7,996.64

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Solution

The fourth proportional to 19,686.16, 29,529.20 and 7,996.64 is: 11,994.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,686.16 : 29,529.20 = 7,996.64 : x
  2. Step 2: Convert to fraction form
    19,686.16/29,529.20 = 7,996.64/x
  3. Step 3: Cross multiply
    19,686.16x = 29,529.20 × 7,996.64
  4. Step 4: Simplify right side
    19,686.16x = 236,134,381.89
  5. Step 5: Solve for x
    x = 236,134,381.89/19,686.16
  6. Step 6: Final answer
    x = 11,994.94

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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.