Home / 18,139.35-27,208.59-10,690.16

Finding the Fourth Proportional to 18,139.35, 27,208.59 and 10,690.16

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Solution

The fourth proportional to 18,139.35, 27,208.59 and 10,690.16 is: 16,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.35 : 27,208.59 = 10,690.16 : x
  2. Step 2: Convert to fraction form
    18,139.35/27,208.59 = 10,690.16/x
  3. Step 3: Cross multiply
    18,139.35x = 27,208.59 × 10,690.16
  4. Step 4: Simplify right side
    18,139.35x = 290,864,044.43
  5. Step 5: Solve for x
    x = 290,864,044.43/18,139.35
  6. Step 6: Final answer
    x = 16,034.98

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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.