Home / 10,447.37-15,679.80-9,790.56

Finding the Fourth Proportional to 10,447.37, 15,679.80 and 9,790.56

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Solution

The fourth proportional to 10,447.37, 15,679.80 and 9,790.56 is: 14,694.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.37 : 15,679.80 = 9,790.56 : x
  2. Step 2: Convert to fraction form
    10,447.37/15,679.80 = 9,790.56/x
  3. Step 3: Cross multiply
    10,447.37x = 15,679.80 × 9,790.56
  4. Step 4: Simplify right side
    10,447.37x = 153,514,022.69
  5. Step 5: Solve for x
    x = 153,514,022.69/10,447.37
  6. Step 6: Final answer
    x = 14,694.04

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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.