Home / 19,758.47-27,267.40-11,261.88

Finding the Fourth Proportional to 19,758.47, 27,267.40 and 11,261.88

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Solution

The fourth proportional to 19,758.47, 27,267.40 and 11,261.88 is: 15,541.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.47 : 27,267.40 = 11,261.88 : x
  2. Step 2: Convert to fraction form
    19,758.47/27,267.40 = 11,261.88/x
  3. Step 3: Cross multiply
    19,758.47x = 27,267.40 × 11,261.88
  4. Step 4: Simplify right side
    19,758.47x = 307,082,022.22
  5. Step 5: Solve for x
    x = 307,082,022.22/19,758.47
  6. Step 6: Final answer
    x = 15,541.79

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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.