Home / 12,618.08-17,415.96-7,315.82

Finding the Fourth Proportional to 12,618.08, 17,415.96 and 7,315.82

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Solution

The fourth proportional to 12,618.08, 17,415.96 and 7,315.82 is: 10,097.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.08 : 17,415.96 = 7,315.82 : x
  2. Step 2: Convert to fraction form
    12,618.08/17,415.96 = 7,315.82/x
  3. Step 3: Cross multiply
    12,618.08x = 17,415.96 × 7,315.82
  4. Step 4: Simplify right side
    12,618.08x = 127,412,028.49
  5. Step 5: Solve for x
    x = 127,412,028.49/12,618.08
  6. Step 6: Final answer
    x = 10,097.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.