Home / 19,151.16-28,725.99-9,791.07

Finding the Fourth Proportional to 19,151.16, 28,725.99 and 9,791.07

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Solution

The fourth proportional to 19,151.16, 28,725.99 and 9,791.07 is: 14,686.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.16 : 28,725.99 = 9,791.07 : x
  2. Step 2: Convert to fraction form
    19,151.16/28,725.99 = 9,791.07/x
  3. Step 3: Cross multiply
    19,151.16x = 28,725.99 × 9,791.07
  4. Step 4: Simplify right side
    19,151.16x = 281,258,035.28
  5. Step 5: Solve for x
    x = 281,258,035.28/19,151.16
  6. Step 6: Final answer
    x = 14,686.22

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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.