Home / 15,286.04-21,076.73-14,152.45

Finding the Fourth Proportional to 15,286.04, 21,076.73 and 14,152.45

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Solution

The fourth proportional to 15,286.04, 21,076.73 and 14,152.45 is: 19,513.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,286.04 : 21,076.73 = 14,152.45 : x
  2. Step 2: Convert to fraction form
    15,286.04/21,076.73 = 14,152.45/x
  3. Step 3: Cross multiply
    15,286.04x = 21,076.73 × 14,152.45
  4. Step 4: Simplify right side
    15,286.04x = 298,287,367.49
  5. Step 5: Solve for x
    x = 298,287,367.49/15,286.04
  6. Step 6: Final answer
    x = 19,513.71

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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.