Home / 13,425.48-18,520.65-8,951.04

Finding the Fourth Proportional to 13,425.48, 18,520.65 and 8,951.04

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Solution

The fourth proportional to 13,425.48, 18,520.65 and 8,951.04 is: 12,348.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.48 : 18,520.65 = 8,951.04 : x
  2. Step 2: Convert to fraction form
    13,425.48/18,520.65 = 8,951.04/x
  3. Step 3: Cross multiply
    13,425.48x = 18,520.65 × 8,951.04
  4. Step 4: Simplify right side
    13,425.48x = 165,779,078.98
  5. Step 5: Solve for x
    x = 165,779,078.98/13,425.48
  6. Step 6: Final answer
    x = 12,348.09

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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.