Home / 16,905.60-23,315.50-12,666.60

Finding the Fourth Proportional to 16,905.60, 23,315.50 and 12,666.60

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Solution

The fourth proportional to 16,905.60, 23,315.50 and 12,666.60 is: 17,469.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.60 : 23,315.50 = 12,666.60 : x
  2. Step 2: Convert to fraction form
    16,905.60/23,315.50 = 12,666.60/x
  3. Step 3: Cross multiply
    16,905.60x = 23,315.50 × 12,666.60
  4. Step 4: Simplify right side
    16,905.60x = 295,328,112.30
  5. Step 5: Solve for x
    x = 295,328,112.30/16,905.60
  6. Step 6: Final answer
    x = 17,469.25

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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.