Home / 21,184.76-29,236.10-11,753.08

Finding the Fourth Proportional to 21,184.76, 29,236.10 and 11,753.08

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Solution

The fourth proportional to 21,184.76, 29,236.10 and 11,753.08 is: 16,219.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.76 : 29,236.10 = 11,753.08 : x
  2. Step 2: Convert to fraction form
    21,184.76/29,236.10 = 11,753.08/x
  3. Step 3: Cross multiply
    21,184.76x = 29,236.10 × 11,753.08
  4. Step 4: Simplify right side
    21,184.76x = 343,614,222.19
  5. Step 5: Solve for x
    x = 343,614,222.19/21,184.76
  6. Step 6: Final answer
    x = 16,219.88

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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.