Home / 18,312.38-27,467.94-7,775.63

Finding the Fourth Proportional to 18,312.38, 27,467.94 and 7,775.63

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Solution

The fourth proportional to 18,312.38, 27,467.94 and 7,775.63 is: 11,663.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.38 : 27,467.94 = 7,775.63 : x
  2. Step 2: Convert to fraction form
    18,312.38/27,467.94 = 7,775.63/x
  3. Step 3: Cross multiply
    18,312.38x = 27,467.94 × 7,775.63
  4. Step 4: Simplify right side
    18,312.38x = 213,580,538.30
  5. Step 5: Solve for x
    x = 213,580,538.30/18,312.38
  6. Step 6: Final answer
    x = 11,663.18

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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.