Home / 21,186.16-29,236.08-11,754.56

Finding the Fourth Proportional to 21,186.16, 29,236.08 and 11,754.56

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Solution

The fourth proportional to 21,186.16, 29,236.08 and 11,754.56 is: 16,220.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.16 : 29,236.08 = 11,754.56 : x
  2. Step 2: Convert to fraction form
    21,186.16/29,236.08 = 11,754.56/x
  3. Step 3: Cross multiply
    21,186.16x = 29,236.08 × 11,754.56
  4. Step 4: Simplify right side
    21,186.16x = 343,657,256.52
  5. Step 5: Solve for x
    x = 343,657,256.52/21,186.16
  6. Step 6: Final answer
    x = 16,220.84

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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.