Home / 18,359.88-27,539.78-5,212.38

Finding the Fourth Proportional to 18,359.88, 27,539.78 and 5,212.38

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Solution

The fourth proportional to 18,359.88, 27,539.78 and 5,212.38 is: 7,818.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.88 : 27,539.78 = 5,212.38 : x
  2. Step 2: Convert to fraction form
    18,359.88/27,539.78 = 5,212.38/x
  3. Step 3: Cross multiply
    18,359.88x = 27,539.78 × 5,212.38
  4. Step 4: Simplify right side
    18,359.88x = 143,547,798.48
  5. Step 5: Solve for x
    x = 143,547,798.48/18,359.88
  6. Step 6: Final answer
    x = 7,818.56

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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.