Home / 14,137.68-21,173.70-13,645.62

Finding the Fourth Proportional to 14,137.68, 21,173.70 and 13,645.62

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Solution

The fourth proportional to 14,137.68, 21,173.70 and 13,645.62 is: 20,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137.68 : 21,173.70 = 13,645.62 : x
  2. Step 2: Convert to fraction form
    14,137.68/21,173.70 = 13,645.62/x
  3. Step 3: Cross multiply
    14,137.68x = 21,173.70 × 13,645.62
  4. Step 4: Simplify right side
    14,137.68x = 288,928,264.19
  5. Step 5: Solve for x
    x = 288,928,264.19/14,137.68
  6. Step 6: Final answer
    x = 20,436.75

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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.