Home / 14,855.67-20,499.93-8,139.96

Finding the Fourth Proportional to 14,855.67, 20,499.93 and 8,139.96

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Solution

The fourth proportional to 14,855.67, 20,499.93 and 8,139.96 is: 11,232.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.67 : 20,499.93 = 8,139.96 : x
  2. Step 2: Convert to fraction form
    14,855.67/20,499.93 = 8,139.96/x
  3. Step 3: Cross multiply
    14,855.67x = 20,499.93 × 8,139.96
  4. Step 4: Simplify right side
    14,855.67x = 166,868,610.20
  5. Step 5: Solve for x
    x = 166,868,610.20/14,855.67
  6. Step 6: Final answer
    x = 11,232.65

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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.