Home / 11,691.24-16,133.13-6,386.04

Finding the Fourth Proportional to 11,691.24, 16,133.13 and 6,386.04

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Solution

The fourth proportional to 11,691.24, 16,133.13 and 6,386.04 is: 8,812.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.24 : 16,133.13 = 6,386.04 : x
  2. Step 2: Convert to fraction form
    11,691.24/16,133.13 = 6,386.04/x
  3. Step 3: Cross multiply
    11,691.24x = 16,133.13 × 6,386.04
  4. Step 4: Simplify right side
    11,691.24x = 103,026,813.51
  5. Step 5: Solve for x
    x = 103,026,813.51/11,691.24
  6. Step 6: Final answer
    x = 8,812.31

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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.