Home / 14,465.24-21,705.44-7,890.20

Finding the Fourth Proportional to 14,465.24, 21,705.44 and 7,890.20

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Solution

The fourth proportional to 14,465.24, 21,705.44 and 7,890.20 is: 11,839.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,465.24 : 21,705.44 = 7,890.20 : x
  2. Step 2: Convert to fraction form
    14,465.24/21,705.44 = 7,890.20/x
  3. Step 3: Cross multiply
    14,465.24x = 21,705.44 × 7,890.20
  4. Step 4: Simplify right side
    14,465.24x = 171,260,262.69
  5. Step 5: Solve for x
    x = 171,260,262.69/14,465.24
  6. Step 6: Final answer
    x = 11,839.43

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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.