Home / 14,105.45-21,171.94-6,715.01

Finding the Fourth Proportional to 14,105.45, 21,171.94 and 6,715.01

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Solution

The fourth proportional to 14,105.45, 21,171.94 and 6,715.01 is: 10,079.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.45 : 21,171.94 = 6,715.01 : x
  2. Step 2: Convert to fraction form
    14,105.45/21,171.94 = 6,715.01/x
  3. Step 3: Cross multiply
    14,105.45x = 21,171.94 × 6,715.01
  4. Step 4: Simplify right side
    14,105.45x = 142,169,666.17
  5. Step 5: Solve for x
    x = 142,169,666.17/14,105.45
  6. Step 6: Final answer
    x = 10,079.06

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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.