Home / 16,955.20-23,382.96-10,980.64

Finding the Fourth Proportional to 16,955.20, 23,382.96 and 10,980.64

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Solution

The fourth proportional to 16,955.20, 23,382.96 and 10,980.64 is: 15,143.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,955.20 : 23,382.96 = 10,980.64 : x
  2. Step 2: Convert to fraction form
    16,955.20/23,382.96 = 10,980.64/x
  3. Step 3: Cross multiply
    16,955.20x = 23,382.96 × 10,980.64
  4. Step 4: Simplify right side
    16,955.20x = 256,759,865.89
  5. Step 5: Solve for x
    x = 256,759,865.89/16,955.20
  6. Step 6: Final answer
    x = 15,143.43

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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.