Home / 16,885.60-25,328.40-8,137.60

Finding the Fourth Proportional to 16,885.60, 25,328.40 and 8,137.60

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Solution

The fourth proportional to 16,885.60, 25,328.40 and 8,137.60 is: 12,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885.60 : 25,328.40 = 8,137.60 : x
  2. Step 2: Convert to fraction form
    16,885.60/25,328.40 = 8,137.60/x
  3. Step 3: Cross multiply
    16,885.60x = 25,328.40 × 8,137.60
  4. Step 4: Simplify right side
    16,885.60x = 206,112,387.84
  5. Step 5: Solve for x
    x = 206,112,387.84/16,885.60
  6. Step 6: Final answer
    x = 12,206.40

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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.