Home / 18,298.80-27,431.64-6,603.84

Finding the Fourth Proportional to 18,298.80, 27,431.64 and 6,603.84

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Solution

The fourth proportional to 18,298.80, 27,431.64 and 6,603.84 is: 9,899.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298.80 : 27,431.64 = 6,603.84 : x
  2. Step 2: Convert to fraction form
    18,298.80/27,431.64 = 6,603.84/x
  3. Step 3: Cross multiply
    18,298.80x = 27,431.64 × 6,603.84
  4. Step 4: Simplify right side
    18,298.80x = 181,154,161.50
  5. Step 5: Solve for x
    x = 181,154,161.50/18,298.80
  6. Step 6: Final answer
    x = 9,899.78

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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.