Home / 19,011.33-28,516.89-5,160.33

Finding the Fourth Proportional to 19,011.33, 28,516.89 and 5,160.33

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Solution

The fourth proportional to 19,011.33, 28,516.89 and 5,160.33 is: 7,740.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,011.33 : 28,516.89 = 5,160.33 : x
  2. Step 2: Convert to fraction form
    19,011.33/28,516.89 = 5,160.33/x
  3. Step 3: Cross multiply
    19,011.33x = 28,516.89 × 5,160.33
  4. Step 4: Simplify right side
    19,011.33x = 147,156,562.97
  5. Step 5: Solve for x
    x = 147,156,562.97/19,011.33
  6. Step 6: Final answer
    x = 7,740.47

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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.