Home / 19,701.40-27,189.56-11,206.20

Finding the Fourth Proportional to 19,701.40, 27,189.56 and 11,206.20

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Solution

The fourth proportional to 19,701.40, 27,189.56 and 11,206.20 is: 15,465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.40 : 27,189.56 = 11,206.20 : x
  2. Step 2: Convert to fraction form
    19,701.40/27,189.56 = 11,206.20/x
  3. Step 3: Cross multiply
    19,701.40x = 27,189.56 × 11,206.20
  4. Step 4: Simplify right side
    19,701.40x = 304,691,647.27
  5. Step 5: Solve for x
    x = 304,691,647.27/19,701.40
  6. Step 6: Final answer
    x = 15,465.48

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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.