Home / 13,911.51-19,197.85-7,538.27

Finding the Fourth Proportional to 13,911.51, 19,197.85 and 7,538.27

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Solution

The fourth proportional to 13,911.51, 19,197.85 and 7,538.27 is: 10,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.51 : 19,197.85 = 7,538.27 : x
  2. Step 2: Convert to fraction form
    13,911.51/19,197.85 = 7,538.27/x
  3. Step 3: Cross multiply
    13,911.51x = 19,197.85 × 7,538.27
  4. Step 4: Simplify right side
    13,911.51x = 144,718,576.72
  5. Step 5: Solve for x
    x = 144,718,576.72/13,911.51
  6. Step 6: Final answer
    x = 10,402.79

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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.