Home / 19,605.12-27,048.48-13,306.56

Finding the Fourth Proportional to 19,605.12, 27,048.48 and 13,306.56

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Solution

The fourth proportional to 19,605.12, 27,048.48 and 13,306.56 is: 18,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.12 : 27,048.48 = 13,306.56 : x
  2. Step 2: Convert to fraction form
    19,605.12/27,048.48 = 13,306.56/x
  3. Step 3: Cross multiply
    19,605.12x = 27,048.48 × 13,306.56
  4. Step 4: Simplify right side
    19,605.12x = 359,922,222.03
  5. Step 5: Solve for x
    x = 359,922,222.03/19,605.12
  6. Step 6: Final answer
    x = 18,358.58

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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.