Home / 13,539.67-20,309.51-3,678.94

Finding the Fourth Proportional to 13,539.67, 20,309.51 and 3,678.94

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Solution

The fourth proportional to 13,539.67, 20,309.51 and 3,678.94 is: 5,518.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.67 : 20,309.51 = 3,678.94 : x
  2. Step 2: Convert to fraction form
    13,539.67/20,309.51 = 3,678.94/x
  3. Step 3: Cross multiply
    13,539.67x = 20,309.51 × 3,678.94
  4. Step 4: Simplify right side
    13,539.67x = 74,717,468.72
  5. Step 5: Solve for x
    x = 74,717,468.72/13,539.67
  6. Step 6: Final answer
    x = 5,518.41

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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.