Home / 14,638.10-20,199.30-8,668.70

Finding the Fourth Proportional to 14,638.10, 20,199.30 and 8,668.70

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Solution

The fourth proportional to 14,638.10, 20,199.30 and 8,668.70 is: 11,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,638.10 : 20,199.30 = 8,668.70 : x
  2. Step 2: Convert to fraction form
    14,638.10/20,199.30 = 8,668.70/x
  3. Step 3: Cross multiply
    14,638.10x = 20,199.30 × 8,668.70
  4. Step 4: Simplify right side
    14,638.10x = 175,101,671.91
  5. Step 5: Solve for x
    x = 175,101,671.91/14,638.10
  6. Step 6: Final answer
    x = 11,962.05

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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.