Home / 14,137.60-21,206.40-12,193.60

Finding the Fourth Proportional to 14,137.60, 21,206.40 and 12,193.60

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Solution

The fourth proportional to 14,137.60, 21,206.40 and 12,193.60 is: 18,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137.60 : 21,206.40 = 12,193.60 : x
  2. Step 2: Convert to fraction form
    14,137.60/21,206.40 = 12,193.60/x
  3. Step 3: Cross multiply
    14,137.60x = 21,206.40 × 12,193.60
  4. Step 4: Simplify right side
    14,137.60x = 258,582,359.04
  5. Step 5: Solve for x
    x = 258,582,359.04/14,137.60
  6. Step 6: Final answer
    x = 18,290.40

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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.