Home / 18,298.40-27,452.39-7,768.80

Finding the Fourth Proportional to 18,298.40, 27,452.39 and 7,768.80

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Solution

The fourth proportional to 18,298.40, 27,452.39 and 7,768.80 is: 11,655.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298.40 : 27,452.39 = 7,768.80 : x
  2. Step 2: Convert to fraction form
    18,298.40/27,452.39 = 7,768.80/x
  3. Step 3: Cross multiply
    18,298.40x = 27,452.39 × 7,768.80
  4. Step 4: Simplify right side
    18,298.40x = 213,272,088.59
  5. Step 5: Solve for x
    x = 213,272,088.59/18,298.40
  6. Step 6: Final answer
    x = 11,655.23

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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.