Home / 14,779.28-20,395.46-8,491.26

Finding the Fourth Proportional to 14,779.28, 20,395.46 and 8,491.26

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Solution

The fourth proportional to 14,779.28, 20,395.46 and 8,491.26 is: 11,717.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.28 : 20,395.46 = 8,491.26 : x
  2. Step 2: Convert to fraction form
    14,779.28/20,395.46 = 8,491.26/x
  3. Step 3: Cross multiply
    14,779.28x = 20,395.46 × 8,491.26
  4. Step 4: Simplify right side
    14,779.28x = 173,183,153.68
  5. Step 5: Solve for x
    x = 173,183,153.68/14,779.28
  6. Step 6: Final answer
    x = 11,717.97

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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.