Home / 14,782.18-20,399.58-8,817.24

Finding the Fourth Proportional to 14,782.18, 20,399.58 and 8,817.24

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Solution

The fourth proportional to 14,782.18, 20,399.58 and 8,817.24 is: 12,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,782.18 : 20,399.58 = 8,817.24 : x
  2. Step 2: Convert to fraction form
    14,782.18/20,399.58 = 8,817.24/x
  3. Step 3: Cross multiply
    14,782.18x = 20,399.58 × 8,817.24
  4. Step 4: Simplify right side
    14,782.18x = 179,867,992.76
  5. Step 5: Solve for x
    x = 179,867,992.76/14,782.18
  6. Step 6: Final answer
    x = 12,167.89

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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.