Home / 12,292.40-16,939.28-8,745.68

Finding the Fourth Proportional to 12,292.40, 16,939.28 and 8,745.68

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Solution

The fourth proportional to 12,292.40, 16,939.28 and 8,745.68 is: 12,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,292.40 : 16,939.28 = 8,745.68 : x
  2. Step 2: Convert to fraction form
    12,292.40/16,939.28 = 8,745.68/x
  3. Step 3: Cross multiply
    12,292.40x = 16,939.28 × 8,745.68
  4. Step 4: Simplify right side
    12,292.40x = 148,145,522.31
  5. Step 5: Solve for x
    x = 148,145,522.31/12,292.40
  6. Step 6: Final answer
    x = 12,051.80

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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.