Home / 13,429.59-20,156.67-6,860.37

Finding the Fourth Proportional to 13,429.59, 20,156.67 and 6,860.37

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Solution

The fourth proportional to 13,429.59, 20,156.67 and 6,860.37 is: 10,296.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.59 : 20,156.67 = 6,860.37 : x
  2. Step 2: Convert to fraction form
    13,429.59/20,156.67 = 6,860.37/x
  3. Step 3: Cross multiply
    13,429.59x = 20,156.67 × 6,860.37
  4. Step 4: Simplify right side
    13,429.59x = 138,282,214.17
  5. Step 5: Solve for x
    x = 138,282,214.17/13,429.59
  6. Step 6: Final answer
    x = 10,296.83

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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.