Home / 21,156.84-29,196.27-11,596.76

Finding the Fourth Proportional to 21,156.84, 29,196.27 and 11,596.76

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Solution

The fourth proportional to 21,156.84, 29,196.27 and 11,596.76 is: 16,003.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,156.84 : 29,196.27 = 11,596.76 : x
  2. Step 2: Convert to fraction form
    21,156.84/29,196.27 = 11,596.76/x
  3. Step 3: Cross multiply
    21,156.84x = 29,196.27 × 11,596.76
  4. Step 4: Simplify right side
    21,156.84x = 338,582,209.08
  5. Step 5: Solve for x
    x = 338,582,209.08/21,156.84
  6. Step 6: Final answer
    x = 16,003.44

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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.