Home / 19,259.10-28,890.90-6,112.80

Finding the Fourth Proportional to 19,259.10, 28,890.90 and 6,112.80

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Solution

The fourth proportional to 19,259.10, 28,890.90 and 6,112.80 is: 9,169.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,259.10 : 28,890.90 = 6,112.80 : x
  2. Step 2: Convert to fraction form
    19,259.10/28,890.90 = 6,112.80/x
  3. Step 3: Cross multiply
    19,259.10x = 28,890.90 × 6,112.80
  4. Step 4: Simplify right side
    19,259.10x = 176,604,293.52
  5. Step 5: Solve for x
    x = 176,604,293.52/19,259.10
  6. Step 6: Final answer
    x = 9,169.91

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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.