Home / 18,963.60-26,165.58-11,001.21

Finding the Fourth Proportional to 18,963.60, 26,165.58 and 11,001.21

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Solution

The fourth proportional to 18,963.60, 26,165.58 and 11,001.21 is: 15,179.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.60 : 26,165.58 = 11,001.21 : x
  2. Step 2: Convert to fraction form
    18,963.60/26,165.58 = 11,001.21/x
  3. Step 3: Cross multiply
    18,963.60x = 26,165.58 × 11,001.21
  4. Step 4: Simplify right side
    18,963.60x = 287,852,939.24
  5. Step 5: Solve for x
    x = 287,852,939.24/18,963.60
  6. Step 6: Final answer
    x = 15,179.24

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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.