Home / 10,382.68-15,576.48-4,143.04

Finding the Fourth Proportional to 10,382.68, 15,576.48 and 4,143.04

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Solution

The fourth proportional to 10,382.68, 15,576.48 and 4,143.04 is: 6,215.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.68 : 15,576.48 = 4,143.04 : x
  2. Step 2: Convert to fraction form
    10,382.68/15,576.48 = 4,143.04/x
  3. Step 3: Cross multiply
    10,382.68x = 15,576.48 × 4,143.04
  4. Step 4: Simplify right side
    10,382.68x = 64,533,979.70
  5. Step 5: Solve for x
    x = 64,533,979.70/10,382.68
  6. Step 6: Final answer
    x = 6,215.54

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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.