Home / 13,141.36-19,709.91-3,779.23

Finding the Fourth Proportional to 13,141.36, 19,709.91 and 3,779.23

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Solution

The fourth proportional to 13,141.36, 19,709.91 and 3,779.23 is: 5,668.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141.36 : 19,709.91 = 3,779.23 : x
  2. Step 2: Convert to fraction form
    13,141.36/19,709.91 = 3,779.23/x
  3. Step 3: Cross multiply
    13,141.36x = 19,709.91 × 3,779.23
  4. Step 4: Simplify right side
    13,141.36x = 74,488,283.17
  5. Step 5: Solve for x
    x = 74,488,283.17/13,141.36
  6. Step 6: Final answer
    x = 5,668.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.