Home / 10,905.96-16,357.32-3,980.46

Finding the Fourth Proportional to 10,905.96, 16,357.32 and 3,980.46

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Solution

The fourth proportional to 10,905.96, 16,357.32 and 3,980.46 is: 5,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.96 : 16,357.32 = 3,980.46 : x
  2. Step 2: Convert to fraction form
    10,905.96/16,357.32 = 3,980.46/x
  3. Step 3: Cross multiply
    10,905.96x = 16,357.32 × 3,980.46
  4. Step 4: Simplify right side
    10,905.96x = 65,109,657.97
  5. Step 5: Solve for x
    x = 65,109,657.97/10,905.96
  6. Step 6: Final answer
    x = 5,970.10

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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.