Home / 19,180.72-28,771.08-7,335.70

Finding the Fourth Proportional to 19,180.72, 28,771.08 and 7,335.70

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Solution

The fourth proportional to 19,180.72, 28,771.08 and 7,335.70 is: 11,003.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.72 : 28,771.08 = 7,335.70 : x
  2. Step 2: Convert to fraction form
    19,180.72/28,771.08 = 7,335.70/x
  3. Step 3: Cross multiply
    19,180.72x = 28,771.08 × 7,335.70
  4. Step 4: Simplify right side
    19,180.72x = 211,055,953.38
  5. Step 5: Solve for x
    x = 211,055,953.38/19,180.72
  6. Step 6: Final answer
    x = 11,003.55

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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.