Home / 14,069.81-21,107.57-6,278.63

Finding the Fourth Proportional to 14,069.81, 21,107.57 and 6,278.63

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Solution

The fourth proportional to 14,069.81, 21,107.57 and 6,278.63 is: 9,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,069.81 : 21,107.57 = 6,278.63 : x
  2. Step 2: Convert to fraction form
    14,069.81/21,107.57 = 6,278.63/x
  3. Step 3: Cross multiply
    14,069.81x = 21,107.57 × 6,278.63
  4. Step 4: Simplify right side
    14,069.81x = 132,526,485.30
  5. Step 5: Solve for x
    x = 132,526,485.30/14,069.81
  6. Step 6: Final answer
    x = 9,419.21

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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.