Home / 13,315.20-19,951.20-12,537.60

Finding the Fourth Proportional to 13,315.20, 19,951.20 and 12,537.60

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Solution

The fourth proportional to 13,315.20, 19,951.20 and 12,537.60 is: 18,786.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.20 : 19,951.20 = 12,537.60 : x
  2. Step 2: Convert to fraction form
    13,315.20/19,951.20 = 12,537.60/x
  3. Step 3: Cross multiply
    13,315.20x = 19,951.20 × 12,537.60
  4. Step 4: Simplify right side
    13,315.20x = 250,140,165.12
  5. Step 5: Solve for x
    x = 250,140,165.12/13,315.20
  6. Step 6: Final answer
    x = 18,786.06

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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.