Home / 14,135.70-19,513.41-10,986.90

Finding the Fourth Proportional to 14,135.70, 19,513.41 and 10,986.90

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Solution

The fourth proportional to 14,135.70, 19,513.41 and 10,986.90 is: 15,166.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.70 : 19,513.41 = 10,986.90 : x
  2. Step 2: Convert to fraction form
    14,135.70/19,513.41 = 10,986.90/x
  3. Step 3: Cross multiply
    14,135.70x = 19,513.41 × 10,986.90
  4. Step 4: Simplify right side
    14,135.70x = 214,391,884.33
  5. Step 5: Solve for x
    x = 214,391,884.33/14,135.70
  6. Step 6: Final answer
    x = 15,166.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.