Home / 18,860.99-28,286.85-6,851.17

Finding the Fourth Proportional to 18,860.99, 28,286.85 and 6,851.17

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Solution

The fourth proportional to 18,860.99, 28,286.85 and 6,851.17 is: 10,275.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.99 : 28,286.85 = 6,851.17 : x
  2. Step 2: Convert to fraction form
    18,860.99/28,286.85 = 6,851.17/x
  3. Step 3: Cross multiply
    18,860.99x = 28,286.85 × 6,851.17
  4. Step 4: Simplify right side
    18,860.99x = 193,798,018.11
  5. Step 5: Solve for x
    x = 193,798,018.11/18,860.99
  6. Step 6: Final answer
    x = 10,275.07

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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.