Home / 21,134.90-29,166.15-11,703.46

Finding the Fourth Proportional to 21,134.90, 29,166.15 and 11,703.46

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Solution

The fourth proportional to 21,134.90, 29,166.15 and 11,703.46 is: 16,150.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.90 : 29,166.15 = 11,703.46 : x
  2. Step 2: Convert to fraction form
    21,134.90/29,166.15 = 11,703.46/x
  3. Step 3: Cross multiply
    21,134.90x = 29,166.15 × 11,703.46
  4. Step 4: Simplify right side
    21,134.90x = 341,344,811.36
  5. Step 5: Solve for x
    x = 341,344,811.36/21,134.90
  6. Step 6: Final answer
    x = 16,150.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.