Home / 14,913.99-20,581.31-8,199.56

Finding the Fourth Proportional to 14,913.99, 20,581.31 and 8,199.56

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Solution

The fourth proportional to 14,913.99, 20,581.31 and 8,199.56 is: 11,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,913.99 : 20,581.31 = 8,199.56 : x
  2. Step 2: Convert to fraction form
    14,913.99/20,581.31 = 8,199.56/x
  3. Step 3: Cross multiply
    14,913.99x = 20,581.31 × 8,199.56
  4. Step 4: Simplify right side
    14,913.99x = 168,757,758.18
  5. Step 5: Solve for x
    x = 168,757,758.18/14,913.99
  6. Step 6: Final answer
    x = 11,315.40

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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.