Home / 14,687.43-20,268.36-8,315.24

Finding the Fourth Proportional to 14,687.43, 20,268.36 and 8,315.24

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Solution

The fourth proportional to 14,687.43, 20,268.36 and 8,315.24 is: 11,474.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.43 : 20,268.36 = 8,315.24 : x
  2. Step 2: Convert to fraction form
    14,687.43/20,268.36 = 8,315.24/x
  3. Step 3: Cross multiply
    14,687.43x = 20,268.36 × 8,315.24
  4. Step 4: Simplify right side
    14,687.43x = 168,536,176.46
  5. Step 5: Solve for x
    x = 168,536,176.46/14,687.43
  6. Step 6: Final answer
    x = 11,474.86

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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.