Home / 14,262.40-19,682.16-7,974.64

Finding the Fourth Proportional to 14,262.40, 19,682.16 and 7,974.64

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Solution

The fourth proportional to 14,262.40, 19,682.16 and 7,974.64 is: 11,005.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,262.40 : 19,682.16 = 7,974.64 : x
  2. Step 2: Convert to fraction form
    14,262.40/19,682.16 = 7,974.64/x
  3. Step 3: Cross multiply
    14,262.40x = 19,682.16 × 7,974.64
  4. Step 4: Simplify right side
    14,262.40x = 156,958,140.42
  5. Step 5: Solve for x
    x = 156,958,140.42/14,262.40
  6. Step 6: Final answer
    x = 11,005.03

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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.