Home / 11,664.28-16,090-7,187.14

Finding the Fourth Proportional to 11,664.28, 16,090 and 7,187.14

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Solution

The fourth proportional to 11,664.28, 16,090 and 7,187.14 is: 9,914.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,664.28 : 16,090 = 7,187.14 : x
  2. Step 2: Convert to fraction form
    11,664.28/16,090 = 7,187.14/x
  3. Step 3: Cross multiply
    11,664.28x = 16,090 × 7,187.14
  4. Step 4: Simplify right side
    11,664.28x = 115,641,082.60
  5. Step 5: Solve for x
    x = 115,641,082.60/11,664.28
  6. Step 6: Final answer
    x = 9,914.12

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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.