Home / 13,951.07-20,926.65-3,421.14

Finding the Fourth Proportional to 13,951.07, 20,926.65 and 3,421.14

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Solution

The fourth proportional to 13,951.07, 20,926.65 and 3,421.14 is: 5,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.07 : 20,926.65 = 3,421.14 : x
  2. Step 2: Convert to fraction form
    13,951.07/20,926.65 = 3,421.14/x
  3. Step 3: Cross multiply
    13,951.07x = 20,926.65 × 3,421.14
  4. Step 4: Simplify right side
    13,951.07x = 71,592,999.38
  5. Step 5: Solve for x
    x = 71,592,999.38/13,951.07
  6. Step 6: Final answer
    x = 5,131.72

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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.