Home / 19,112.16-28,639.01-8,012.79

Finding the Fourth Proportional to 19,112.16, 28,639.01 and 8,012.79

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Solution

The fourth proportional to 19,112.16, 28,639.01 and 8,012.79 is: 12,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.16 : 28,639.01 = 8,012.79 : x
  2. Step 2: Convert to fraction form
    19,112.16/28,639.01 = 8,012.79/x
  3. Step 3: Cross multiply
    19,112.16x = 28,639.01 × 8,012.79
  4. Step 4: Simplify right side
    19,112.16x = 229,478,332.87
  5. Step 5: Solve for x
    x = 229,478,332.87/19,112.16
  6. Step 6: Final answer
    x = 12,006.93

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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.