Home / 14,919.67-20,588.70-8,205.29

Finding the Fourth Proportional to 14,919.67, 20,588.70 and 8,205.29

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Solution

The fourth proportional to 14,919.67, 20,588.70 and 8,205.29 is: 11,323.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.67 : 20,588.70 = 8,205.29 : x
  2. Step 2: Convert to fraction form
    14,919.67/20,588.70 = 8,205.29/x
  3. Step 3: Cross multiply
    14,919.67x = 20,588.70 × 8,205.29
  4. Step 4: Simplify right side
    14,919.67x = 168,936,254.22
  5. Step 5: Solve for x
    x = 168,936,254.22/14,919.67
  6. Step 6: Final answer
    x = 11,323.06

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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.