Home / 13,614.68-20,379.58-10,486.60

Finding the Fourth Proportional to 13,614.68, 20,379.58 and 10,486.60

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Solution

The fourth proportional to 13,614.68, 20,379.58 and 10,486.60 is: 15,697.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.68 : 20,379.58 = 10,486.60 : x
  2. Step 2: Convert to fraction form
    13,614.68/20,379.58 = 10,486.60/x
  3. Step 3: Cross multiply
    13,614.68x = 20,379.58 × 10,486.60
  4. Step 4: Simplify right side
    13,614.68x = 213,712,503.63
  5. Step 5: Solve for x
    x = 213,712,503.63/13,614.68
  6. Step 6: Final answer
    x = 15,697.21

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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.