Home / 19,668.10-27,133.35-13,292.37

Finding the Fourth Proportional to 19,668.10, 27,133.35 and 13,292.37

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Solution

The fourth proportional to 19,668.10, 27,133.35 and 13,292.37 is: 18,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.10 : 27,133.35 = 13,292.37 : x
  2. Step 2: Convert to fraction form
    19,668.10/27,133.35 = 13,292.37/x
  3. Step 3: Cross multiply
    19,668.10x = 27,133.35 × 13,292.37
  4. Step 4: Simplify right side
    19,668.10x = 360,666,477.69
  5. Step 5: Solve for x
    x = 360,666,477.69/19,668.10
  6. Step 6: Final answer
    x = 18,337.64

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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.