Home / 19,538.52-26,963.40-11,155

Finding the Fourth Proportional to 19,538.52, 26,963.40 and 11,155

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Solution

The fourth proportional to 19,538.52, 26,963.40 and 11,155 is: 15,394.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.52 : 26,963.40 = 11,155 : x
  2. Step 2: Convert to fraction form
    19,538.52/26,963.40 = 11,155/x
  3. Step 3: Cross multiply
    19,538.52x = 26,963.40 × 11,155
  4. Step 4: Simplify right side
    19,538.52x = 300,776,727
  5. Step 5: Solve for x
    x = 300,776,727/19,538.52
  6. Step 6: Final answer
    x = 15,394.04

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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.