Home / 14,123.90-21,149.40-11,207.90

Finding the Fourth Proportional to 14,123.90, 21,149.40 and 11,207.90

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Solution

The fourth proportional to 14,123.90, 21,149.40 and 11,207.90 is: 16,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.90 : 21,149.40 = 11,207.90 : x
  2. Step 2: Convert to fraction form
    14,123.90/21,149.40 = 11,207.90/x
  3. Step 3: Cross multiply
    14,123.90x = 21,149.40 × 11,207.90
  4. Step 4: Simplify right side
    14,123.90x = 237,040,360.26
  5. Step 5: Solve for x
    x = 237,040,360.26/14,123.90
  6. Step 6: Final answer
    x = 16,782.93

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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.