Home / 14,450.90-21,678.99-5,685.62

Finding the Fourth Proportional to 14,450.90, 21,678.99 and 5,685.62

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Solution

The fourth proportional to 14,450.90, 21,678.99 and 5,685.62 is: 8,529.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,450.90 : 21,678.99 = 5,685.62 : x
  2. Step 2: Convert to fraction form
    14,450.90/21,678.99 = 5,685.62/x
  3. Step 3: Cross multiply
    14,450.90x = 21,678.99 × 5,685.62
  4. Step 4: Simplify right side
    14,450.90x = 123,258,499.12
  5. Step 5: Solve for x
    x = 123,258,499.12/14,450.90
  6. Step 6: Final answer
    x = 8,529.47

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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.