Home / 10,864.31-16,299.90-5,318.24

Finding the Fourth Proportional to 10,864.31, 16,299.90 and 5,318.24

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Solution

The fourth proportional to 10,864.31, 16,299.90 and 5,318.24 is: 7,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,864.31 : 16,299.90 = 5,318.24 : x
  2. Step 2: Convert to fraction form
    10,864.31/16,299.90 = 5,318.24/x
  3. Step 3: Cross multiply
    10,864.31x = 16,299.90 × 5,318.24
  4. Step 4: Simplify right side
    10,864.31x = 86,686,698.68
  5. Step 5: Solve for x
    x = 86,686,698.68/10,864.31
  6. Step 6: Final answer
    x = 7,979.04

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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.