Home / 12,860.05-17,747.01-7,555.09

Finding the Fourth Proportional to 12,860.05, 17,747.01 and 7,555.09

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Solution

The fourth proportional to 12,860.05, 17,747.01 and 7,555.09 is: 10,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.05 : 17,747.01 = 7,555.09 : x
  2. Step 2: Convert to fraction form
    12,860.05/17,747.01 = 7,555.09/x
  3. Step 3: Cross multiply
    12,860.05x = 17,747.01 × 7,555.09
  4. Step 4: Simplify right side
    12,860.05x = 134,080,257.78
  5. Step 5: Solve for x
    x = 134,080,257.78/12,860.05
  6. Step 6: Final answer
    x = 10,426.11

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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.