Home / 12,555.68-17,327.01-6,890.33

Finding the Fourth Proportional to 12,555.68, 17,327.01 and 6,890.33

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Solution

The fourth proportional to 12,555.68, 17,327.01 and 6,890.33 is: 9,508.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.68 : 17,327.01 = 6,890.33 : x
  2. Step 2: Convert to fraction form
    12,555.68/17,327.01 = 6,890.33/x
  3. Step 3: Cross multiply
    12,555.68x = 17,327.01 × 6,890.33
  4. Step 4: Simplify right side
    12,555.68x = 119,388,730.18
  5. Step 5: Solve for x
    x = 119,388,730.18/12,555.68
  6. Step 6: Final answer
    x = 9,508.75

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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.