Home / 18,302.08-27,428.49-7,205.78

Finding the Fourth Proportional to 18,302.08, 27,428.49 and 7,205.78

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Solution

The fourth proportional to 18,302.08, 27,428.49 and 7,205.78 is: 10,798.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.08 : 27,428.49 = 7,205.78 : x
  2. Step 2: Convert to fraction form
    18,302.08/27,428.49 = 7,205.78/x
  3. Step 3: Cross multiply
    18,302.08x = 27,428.49 × 7,205.78
  4. Step 4: Simplify right side
    18,302.08x = 197,643,733.24
  5. Step 5: Solve for x
    x = 197,643,733.24/18,302.08
  6. Step 6: Final answer
    x = 10,798.98

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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.