Home / 21,184.74-29,235.60-11,754.18

Finding the Fourth Proportional to 21,184.74, 29,235.60 and 11,754.18

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Solution

The fourth proportional to 21,184.74, 29,235.60 and 11,754.18 is: 16,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.74 : 29,235.60 = 11,754.18 : x
  2. Step 2: Convert to fraction form
    21,184.74/29,235.60 = 11,754.18/x
  3. Step 3: Cross multiply
    21,184.74x = 29,235.60 × 11,754.18
  4. Step 4: Simplify right side
    21,184.74x = 343,640,504.81
  5. Step 5: Solve for x
    x = 343,640,504.81/21,184.74
  6. Step 6: Final answer
    x = 16,221.13

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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.