Home / 15,286.54-21,077.42-14,152.95

Finding the Fourth Proportional to 15,286.54, 21,077.42 and 14,152.95

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Solution

The fourth proportional to 15,286.54, 21,077.42 and 14,152.95 is: 19,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,286.54 : 21,077.42 = 14,152.95 : x
  2. Step 2: Convert to fraction form
    15,286.54/21,077.42 = 14,152.95/x
  3. Step 3: Cross multiply
    15,286.54x = 21,077.42 × 14,152.95
  4. Step 4: Simplify right side
    15,286.54x = 298,307,671.39
  5. Step 5: Solve for x
    x = 298,307,671.39/15,286.54
  6. Step 6: Final answer
    x = 19,514.40

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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.