Home / 19,646.64-27,107.72-11,146.88

Finding the Fourth Proportional to 19,646.64, 27,107.72 and 11,146.88

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Solution

The fourth proportional to 19,646.64, 27,107.72 and 11,146.88 is: 15,380.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,646.64 : 27,107.72 = 11,146.88 : x
  2. Step 2: Convert to fraction form
    19,646.64/27,107.72 = 11,146.88/x
  3. Step 3: Cross multiply
    19,646.64x = 27,107.72 × 11,146.88
  4. Step 4: Simplify right side
    19,646.64x = 302,166,501.91
  5. Step 5: Solve for x
    x = 302,166,501.91/19,646.64
  6. Step 6: Final answer
    x = 15,380.06

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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.