Home / 21,487.34-29,651.98-11,926.74

Finding the Fourth Proportional to 21,487.34, 29,651.98 and 11,926.74

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Solution

The fourth proportional to 21,487.34, 29,651.98 and 11,926.74 is: 16,458.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.34 : 29,651.98 = 11,926.74 : x
  2. Step 2: Convert to fraction form
    21,487.34/29,651.98 = 11,926.74/x
  3. Step 3: Cross multiply
    21,487.34x = 29,651.98 × 11,926.74
  4. Step 4: Simplify right side
    21,487.34x = 353,651,426.13
  5. Step 5: Solve for x
    x = 353,651,426.13/21,487.34
  6. Step 6: Final answer
    x = 16,458.59

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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.