Home / 11,640.18-16,054.03-7,155.92

Finding the Fourth Proportional to 11,640.18, 16,054.03 and 7,155.92

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Solution

The fourth proportional to 11,640.18, 16,054.03 and 7,155.92 is: 9,869.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.18 : 16,054.03 = 7,155.92 : x
  2. Step 2: Convert to fraction form
    11,640.18/16,054.03 = 7,155.92/x
  3. Step 3: Cross multiply
    11,640.18x = 16,054.03 × 7,155.92
  4. Step 4: Simplify right side
    11,640.18x = 114,881,403.44
  5. Step 5: Solve for x
    x = 114,881,403.44/11,640.18
  6. Step 6: Final answer
    x = 9,869.38

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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.