Home / 16,905.60-25,379.20-10,665.60

Finding the Fourth Proportional to 16,905.60, 25,379.20 and 10,665.60

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Solution

The fourth proportional to 16,905.60, 25,379.20 and 10,665.60 is: 16,011.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.60 : 25,379.20 = 10,665.60 : x
  2. Step 2: Convert to fraction form
    16,905.60/25,379.20 = 10,665.60/x
  3. Step 3: Cross multiply
    16,905.60x = 25,379.20 × 10,665.60
  4. Step 4: Simplify right side
    16,905.60x = 270,684,395.52
  5. Step 5: Solve for x
    x = 270,684,395.52/16,905.60
  6. Step 6: Final answer
    x = 16,011.52

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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.