Home / 19,186.75-28,780.14-5,335.75

Finding the Fourth Proportional to 19,186.75, 28,780.14 and 5,335.75

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Solution

The fourth proportional to 19,186.75, 28,780.14 and 5,335.75 is: 8,003.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,186.75 : 28,780.14 = 5,335.75 : x
  2. Step 2: Convert to fraction form
    19,186.75/28,780.14 = 5,335.75/x
  3. Step 3: Cross multiply
    19,186.75x = 28,780.14 × 5,335.75
  4. Step 4: Simplify right side
    19,186.75x = 153,563,632.01
  5. Step 5: Solve for x
    x = 153,563,632.01/19,186.75
  6. Step 6: Final answer
    x = 8,003.63

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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.