Home / 13,841.80-20,730.30-9,435.40

Finding the Fourth Proportional to 13,841.80, 20,730.30 and 9,435.40

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Solution

The fourth proportional to 13,841.80, 20,730.30 and 9,435.40 is: 14,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.80 : 20,730.30 = 9,435.40 : x
  2. Step 2: Convert to fraction form
    13,841.80/20,730.30 = 9,435.40/x
  3. Step 3: Cross multiply
    13,841.80x = 20,730.30 × 9,435.40
  4. Step 4: Simplify right side
    13,841.80x = 195,598,672.62
  5. Step 5: Solve for x
    x = 195,598,672.62/13,841.80
  6. Step 6: Final answer
    x = 14,131.01

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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.