Home / 19,680.63-29,506.35-11,887.62

Finding the Fourth Proportional to 19,680.63, 29,506.35 and 11,887.62

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Solution

The fourth proportional to 19,680.63, 29,506.35 and 11,887.62 is: 17,822.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.63 : 29,506.35 = 11,887.62 : x
  2. Step 2: Convert to fraction form
    19,680.63/29,506.35 = 11,887.62/x
  3. Step 3: Cross multiply
    19,680.63x = 29,506.35 × 11,887.62
  4. Step 4: Simplify right side
    19,680.63x = 350,760,276.39
  5. Step 5: Solve for x
    x = 350,760,276.39/19,680.63
  6. Step 6: Final answer
    x = 17,822.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.