Home / 14,187.32-21,279.50-6,289.97

Finding the Fourth Proportional to 14,187.32, 21,279.50 and 6,289.97

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Solution

The fourth proportional to 14,187.32, 21,279.50 and 6,289.97 is: 9,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.32 : 21,279.50 = 6,289.97 : x
  2. Step 2: Convert to fraction form
    14,187.32/21,279.50 = 6,289.97/x
  3. Step 3: Cross multiply
    14,187.32x = 21,279.50 × 6,289.97
  4. Step 4: Simplify right side
    14,187.32x = 133,847,438.36
  5. Step 5: Solve for x
    x = 133,847,438.36/14,187.32
  6. Step 6: Final answer
    x = 9,434.30

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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.