Home / 18,533.67-25,576.89-10,979.88

Finding the Fourth Proportional to 18,533.67, 25,576.89 and 10,979.88

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Solution

The fourth proportional to 18,533.67, 25,576.89 and 10,979.88 is: 15,152.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,533.67 : 25,576.89 = 10,979.88 : x
  2. Step 2: Convert to fraction form
    18,533.67/25,576.89 = 10,979.88/x
  3. Step 3: Cross multiply
    18,533.67x = 25,576.89 × 10,979.88
  4. Step 4: Simplify right side
    18,533.67x = 280,831,182.97
  5. Step 5: Solve for x
    x = 280,831,182.97/18,533.67
  6. Step 6: Final answer
    x = 15,152.49

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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.