Home / 14,258.70-21,391.09-7,239.65

Finding the Fourth Proportional to 14,258.70, 21,391.09 and 7,239.65

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Solution

The fourth proportional to 14,258.70, 21,391.09 and 7,239.65 is: 10,861.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258.70 : 21,391.09 = 7,239.65 : x
  2. Step 2: Convert to fraction form
    14,258.70/21,391.09 = 7,239.65/x
  3. Step 3: Cross multiply
    14,258.70x = 21,391.09 × 7,239.65
  4. Step 4: Simplify right side
    14,258.70x = 154,863,879.66
  5. Step 5: Solve for x
    x = 154,863,879.66/14,258.70
  6. Step 6: Final answer
    x = 10,861.01

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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.