Home / 11,691.34-16,134.33-6,386.11

Finding the Fourth Proportional to 11,691.34, 16,134.33 and 6,386.11

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Solution

The fourth proportional to 11,691.34, 16,134.33 and 6,386.11 is: 8,812.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.34 : 16,134.33 = 6,386.11 : x
  2. Step 2: Convert to fraction form
    11,691.34/16,134.33 = 6,386.11/x
  3. Step 3: Cross multiply
    11,691.34x = 16,134.33 × 6,386.11
  4. Step 4: Simplify right side
    11,691.34x = 103,035,606.16
  5. Step 5: Solve for x
    x = 103,035,606.16/11,691.34
  6. Step 6: Final answer
    x = 8,812.99

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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.