Home / 12,250.81-16,907.37-7,216.61

Finding the Fourth Proportional to 12,250.81, 16,907.37 and 7,216.61

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Solution

The fourth proportional to 12,250.81, 16,907.37 and 7,216.61 is: 9,959.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.81 : 16,907.37 = 7,216.61 : x
  2. Step 2: Convert to fraction form
    12,250.81/16,907.37 = 7,216.61/x
  3. Step 3: Cross multiply
    12,250.81x = 16,907.37 × 7,216.61
  4. Step 4: Simplify right side
    12,250.81x = 122,013,895.42
  5. Step 5: Solve for x
    x = 122,013,895.42/12,250.81
  6. Step 6: Final answer
    x = 9,959.66

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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.