Home / 11,690.14-16,132.60-7,153.58

Finding the Fourth Proportional to 11,690.14, 16,132.60 and 7,153.58

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Solution

The fourth proportional to 11,690.14, 16,132.60 and 7,153.58 is: 9,872.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.14 : 16,132.60 = 7,153.58 : x
  2. Step 2: Convert to fraction form
    11,690.14/16,132.60 = 7,153.58/x
  3. Step 3: Cross multiply
    11,690.14x = 16,132.60 × 7,153.58
  4. Step 4: Simplify right side
    11,690.14x = 115,405,844.71
  5. Step 5: Solve for x
    x = 115,405,844.71/11,690.14
  6. Step 6: Final answer
    x = 9,872.07

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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.