Home / 13,513.76-20,242.39-10,866.95

Finding the Fourth Proportional to 13,513.76, 20,242.39 and 10,866.95

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Solution

The fourth proportional to 13,513.76, 20,242.39 and 10,866.95 is: 16,277.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.76 : 20,242.39 = 10,866.95 : x
  2. Step 2: Convert to fraction form
    13,513.76/20,242.39 = 10,866.95/x
  3. Step 3: Cross multiply
    13,513.76x = 20,242.39 × 10,866.95
  4. Step 4: Simplify right side
    13,513.76x = 219,973,040.01
  5. Step 5: Solve for x
    x = 219,973,040.01/13,513.76
  6. Step 6: Final answer
    x = 16,277.71

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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.