Home / 16,885.10-25,311.45-13,134.80

Finding the Fourth Proportional to 16,885.10, 25,311.45 and 13,134.80

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Solution

The fourth proportional to 16,885.10, 25,311.45 and 13,134.80 is: 19,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885.10 : 25,311.45 = 13,134.80 : x
  2. Step 2: Convert to fraction form
    16,885.10/25,311.45 = 13,134.80/x
  3. Step 3: Cross multiply
    16,885.10x = 25,311.45 × 13,134.80
  4. Step 4: Simplify right side
    16,885.10x = 332,460,833.46
  5. Step 5: Solve for x
    x = 332,460,833.46/16,885.10
  6. Step 6: Final answer
    x = 19,689.60

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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.