Home / 13,125.80-19,688.70-4,361.60

Finding the Fourth Proportional to 13,125.80, 19,688.70 and 4,361.60

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Solution

The fourth proportional to 13,125.80, 19,688.70 and 4,361.60 is: 6,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.80 : 19,688.70 = 4,361.60 : x
  2. Step 2: Convert to fraction form
    13,125.80/19,688.70 = 4,361.60/x
  3. Step 3: Cross multiply
    13,125.80x = 19,688.70 × 4,361.60
  4. Step 4: Simplify right side
    13,125.80x = 85,874,233.92
  5. Step 5: Solve for x
    x = 85,874,233.92/13,125.80
  6. Step 6: Final answer
    x = 6,542.40

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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.