Home / 14,181.87-21,273-5,417.28

Finding the Fourth Proportional to 14,181.87, 21,273 and 5,417.28

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Solution

The fourth proportional to 14,181.87, 21,273 and 5,417.28 is: 8,125.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181.87 : 21,273 = 5,417.28 : x
  2. Step 2: Convert to fraction form
    14,181.87/21,273 = 5,417.28/x
  3. Step 3: Cross multiply
    14,181.87x = 21,273 × 5,417.28
  4. Step 4: Simplify right side
    14,181.87x = 115,241,797.44
  5. Step 5: Solve for x
    x = 115,241,797.44/14,181.87
  6. Step 6: Final answer
    x = 8,125.99

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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.