Home / 12,588.95-17,372.71-6,923.78

Finding the Fourth Proportional to 12,588.95, 17,372.71 and 6,923.78

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Solution

The fourth proportional to 12,588.95, 17,372.71 and 6,923.78 is: 9,554.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.95 : 17,372.71 = 6,923.78 : x
  2. Step 2: Convert to fraction form
    12,588.95/17,372.71 = 6,923.78/x
  3. Step 3: Cross multiply
    12,588.95x = 17,372.71 × 6,923.78
  4. Step 4: Simplify right side
    12,588.95x = 120,284,808.98
  5. Step 5: Solve for x
    x = 120,284,808.98/12,588.95
  6. Step 6: Final answer
    x = 9,554.79

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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.