Home / 13,366.12-20,069.42-10,615.09

Finding the Fourth Proportional to 13,366.12, 20,069.42 and 10,615.09

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Solution

The fourth proportional to 13,366.12, 20,069.42 and 10,615.09 is: 15,938.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.12 : 20,069.42 = 10,615.09 : x
  2. Step 2: Convert to fraction form
    13,366.12/20,069.42 = 10,615.09/x
  3. Step 3: Cross multiply
    13,366.12x = 20,069.42 × 10,615.09
  4. Step 4: Simplify right side
    13,366.12x = 213,038,699.55
  5. Step 5: Solve for x
    x = 213,038,699.55/13,366.12
  6. Step 6: Final answer
    x = 15,938.71

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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.