Home / 10,712.68-14,785.22-8,189.94

Finding the Fourth Proportional to 10,712.68, 14,785.22 and 8,189.94

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Solution

The fourth proportional to 10,712.68, 14,785.22 and 8,189.94 is: 11,303.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.68 : 14,785.22 = 8,189.94 : x
  2. Step 2: Convert to fraction form
    10,712.68/14,785.22 = 8,189.94/x
  3. Step 3: Cross multiply
    10,712.68x = 14,785.22 × 8,189.94
  4. Step 4: Simplify right side
    10,712.68x = 121,090,064.69
  5. Step 5: Solve for x
    x = 121,090,064.69/10,712.68
  6. Step 6: Final answer
    x = 11,303.43

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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.