Home / 12,555.94-17,326.62-6,890.56

Finding the Fourth Proportional to 12,555.94, 17,326.62 and 6,890.56

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Solution

The fourth proportional to 12,555.94, 17,326.62 and 6,890.56 is: 9,508.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.94 : 17,326.62 = 6,890.56 : x
  2. Step 2: Convert to fraction form
    12,555.94/17,326.62 = 6,890.56/x
  3. Step 3: Cross multiply
    12,555.94x = 17,326.62 × 6,890.56
  4. Step 4: Simplify right side
    12,555.94x = 119,390,114.71
  5. Step 5: Solve for x
    x = 119,390,114.71/12,555.94
  6. Step 6: Final answer
    x = 9,508.66

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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.