Home / 18,018.64-27,044.57-9,140.20

Finding the Fourth Proportional to 18,018.64, 27,044.57 and 9,140.20

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Solution

The fourth proportional to 18,018.64, 27,044.57 and 9,140.20 is: 13,718.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.64 : 27,044.57 = 9,140.20 : x
  2. Step 2: Convert to fraction form
    18,018.64/27,044.57 = 9,140.20/x
  3. Step 3: Cross multiply
    18,018.64x = 27,044.57 × 9,140.20
  4. Step 4: Simplify right side
    18,018.64x = 247,192,665.40
  5. Step 5: Solve for x
    x = 247,192,665.40/18,018.64
  6. Step 6: Final answer
    x = 13,718.72

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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.