Home / 13,526.31-20,256.35-11,171.91

Finding the Fourth Proportional to 13,526.31, 20,256.35 and 11,171.91

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Solution

The fourth proportional to 13,526.31, 20,256.35 and 11,171.91 is: 16,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526.31 : 20,256.35 = 11,171.91 : x
  2. Step 2: Convert to fraction form
    13,526.31/20,256.35 = 11,171.91/x
  3. Step 3: Cross multiply
    13,526.31x = 20,256.35 × 11,171.91
  4. Step 4: Simplify right side
    13,526.31x = 226,302,063.27
  5. Step 5: Solve for x
    x = 226,302,063.27/13,526.31
  6. Step 6: Final answer
    x = 16,730.51

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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.