Home / 11,712.59-16,155.41-7,173.15

Finding the Fourth Proportional to 11,712.59, 16,155.41 and 7,173.15

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Solution

The fourth proportional to 11,712.59, 16,155.41 and 7,173.15 is: 9,894.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.59 : 16,155.41 = 7,173.15 : x
  2. Step 2: Convert to fraction form
    11,712.59/16,155.41 = 7,173.15/x
  3. Step 3: Cross multiply
    11,712.59x = 16,155.41 × 7,173.15
  4. Step 4: Simplify right side
    11,712.59x = 115,885,179.24
  5. Step 5: Solve for x
    x = 115,885,179.24/11,712.59
  6. Step 6: Final answer
    x = 9,894.07

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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.