Home / 18,983.78-26,173.04-13,004.76

Finding the Fourth Proportional to 18,983.78, 26,173.04 and 13,004.76

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Solution

The fourth proportional to 18,983.78, 26,173.04 and 13,004.76 is: 17,929.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.78 : 26,173.04 = 13,004.76 : x
  2. Step 2: Convert to fraction form
    18,983.78/26,173.04 = 13,004.76/x
  3. Step 3: Cross multiply
    18,983.78x = 26,173.04 × 13,004.76
  4. Step 4: Simplify right side
    18,983.78x = 340,374,103.67
  5. Step 5: Solve for x
    x = 340,374,103.67/18,983.78
  6. Step 6: Final answer
    x = 17,929.74

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Half scale
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Double scale
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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.