Home / 8,434.13-11,639.09-4,899.49

Finding the Fourth Proportional to 8,434.13, 11,639.09 and 4,899.49

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Solution

The fourth proportional to 8,434.13, 11,639.09 and 4,899.49 is: 6,761.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.13 : 11,639.09 = 4,899.49 : x
  2. Step 2: Convert to fraction form
    8,434.13/11,639.09 = 4,899.49/x
  3. Step 3: Cross multiply
    8,434.13x = 11,639.09 × 4,899.49
  4. Step 4: Simplify right side
    8,434.13x = 57,025,588.22
  5. Step 5: Solve for x
    x = 57,025,588.22/8,434.13
  6. Step 6: Final answer
    x = 6,761.29

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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.