Home / 21,186.32-29,237.03-11,754.89

Finding the Fourth Proportional to 21,186.32, 29,237.03 and 11,754.89

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Solution

The fourth proportional to 21,186.32, 29,237.03 and 11,754.89 is: 16,221.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.32 : 29,237.03 = 11,754.89 : x
  2. Step 2: Convert to fraction form
    21,186.32/29,237.03 = 11,754.89/x
  3. Step 3: Cross multiply
    21,186.32x = 29,237.03 × 11,754.89
  4. Step 4: Simplify right side
    21,186.32x = 343,677,925.39
  5. Step 5: Solve for x
    x = 343,677,925.39/21,186.32
  6. Step 6: Final answer
    x = 16,221.69

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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.