Home / 11,883.60-16,399.56-7,409.16

Finding the Fourth Proportional to 11,883.60, 16,399.56 and 7,409.16

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Solution

The fourth proportional to 11,883.60, 16,399.56 and 7,409.16 is: 10,224.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,883.60 : 16,399.56 = 7,409.16 : x
  2. Step 2: Convert to fraction form
    11,883.60/16,399.56 = 7,409.16/x
  3. Step 3: Cross multiply
    11,883.60x = 16,399.56 × 7,409.16
  4. Step 4: Simplify right side
    11,883.60x = 121,506,963.97
  5. Step 5: Solve for x
    x = 121,506,963.97/11,883.60
  6. Step 6: Final answer
    x = 10,224.76

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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.