Home / 13,416.80-20,125.10-4,056.80

Finding the Fourth Proportional to 13,416.80, 20,125.10 and 4,056.80

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Solution

The fourth proportional to 13,416.80, 20,125.10 and 4,056.80 is: 6,085.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.80 : 20,125.10 = 4,056.80 : x
  2. Step 2: Convert to fraction form
    13,416.80/20,125.10 = 4,056.80/x
  3. Step 3: Cross multiply
    13,416.80x = 20,125.10 × 4,056.80
  4. Step 4: Simplify right side
    13,416.80x = 81,643,505.68
  5. Step 5: Solve for x
    x = 81,643,505.68/13,416.80
  6. Step 6: Final answer
    x = 6,085.17

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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.