Home / 14,489.13-21,704.48-12,142.56

Finding the Fourth Proportional to 14,489.13, 21,704.48 and 12,142.56

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Solution

The fourth proportional to 14,489.13, 21,704.48 and 12,142.56 is: 18,189.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,489.13 : 21,704.48 = 12,142.56 : x
  2. Step 2: Convert to fraction form
    14,489.13/21,704.48 = 12,142.56/x
  3. Step 3: Cross multiply
    14,489.13x = 21,704.48 × 12,142.56
  4. Step 4: Simplify right side
    14,489.13x = 263,547,950.67
  5. Step 5: Solve for x
    x = 263,547,950.67/14,489.13
  6. Step 6: Final answer
    x = 18,189.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.