Home / 21,346.46-29,457.98-11,786.94

Finding the Fourth Proportional to 21,346.46, 29,457.98 and 11,786.94

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Solution

The fourth proportional to 21,346.46, 29,457.98 and 11,786.94 is: 16,265.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346.46 : 29,457.98 = 11,786.94 : x
  2. Step 2: Convert to fraction form
    21,346.46/29,457.98 = 11,786.94/x
  3. Step 3: Cross multiply
    21,346.46x = 29,457.98 × 11,786.94
  4. Step 4: Simplify right side
    21,346.46x = 347,219,510.90
  5. Step 5: Solve for x
    x = 347,219,510.90/21,346.46
  6. Step 6: Final answer
    x = 16,265.90

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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.