Home / 14,605.26-20,155.22-7,890.87

Finding the Fourth Proportional to 14,605.26, 20,155.22 and 7,890.87

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Solution

The fourth proportional to 14,605.26, 20,155.22 and 7,890.87 is: 10,889.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.26 : 20,155.22 = 7,890.87 : x
  2. Step 2: Convert to fraction form
    14,605.26/20,155.22 = 7,890.87/x
  3. Step 3: Cross multiply
    14,605.26x = 20,155.22 × 7,890.87
  4. Step 4: Simplify right side
    14,605.26x = 159,042,220.84
  5. Step 5: Solve for x
    x = 159,042,220.84/14,605.26
  6. Step 6: Final answer
    x = 10,889.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.