Home / 12,807.06-17,674.91-7,772.57

Finding the Fourth Proportional to 12,807.06, 17,674.91 and 7,772.57

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Solution

The fourth proportional to 12,807.06, 17,674.91 and 7,772.57 is: 10,726.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807.06 : 17,674.91 = 7,772.57 : x
  2. Step 2: Convert to fraction form
    12,807.06/17,674.91 = 7,772.57/x
  3. Step 3: Cross multiply
    12,807.06x = 17,674.91 × 7,772.57
  4. Step 4: Simplify right side
    12,807.06x = 137,379,347.98
  5. Step 5: Solve for x
    x = 137,379,347.98/12,807.06
  6. Step 6: Final answer
    x = 10,726.85

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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.