Home / 15,936.40-23,904.60-12,257.20

Finding the Fourth Proportional to 15,936.40, 23,904.60 and 12,257.20

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Solution

The fourth proportional to 15,936.40, 23,904.60 and 12,257.20 is: 18,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,936.40 : 23,904.60 = 12,257.20 : x
  2. Step 2: Convert to fraction form
    15,936.40/23,904.60 = 12,257.20/x
  3. Step 3: Cross multiply
    15,936.40x = 23,904.60 × 12,257.20
  4. Step 4: Simplify right side
    15,936.40x = 293,003,463.12
  5. Step 5: Solve for x
    x = 293,003,463.12/15,936.40
  6. Step 6: Final answer
    x = 18,385.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.