Home / 18,957.12-26,160.44-11,000.12

Finding the Fourth Proportional to 18,957.12, 26,160.44 and 11,000.12

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Solution

The fourth proportional to 18,957.12, 26,160.44 and 11,000.12 is: 15,179.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.12 : 26,160.44 = 11,000.12 : x
  2. Step 2: Convert to fraction form
    18,957.12/26,160.44 = 11,000.12/x
  3. Step 3: Cross multiply
    18,957.12x = 26,160.44 × 11,000.12
  4. Step 4: Simplify right side
    18,957.12x = 287,767,979.25
  5. Step 5: Solve for x
    x = 287,767,979.25/18,957.12
  6. Step 6: Final answer
    x = 15,179.94

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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.