Home / 11,316.40-16,947.24-5,755.12

Finding the Fourth Proportional to 11,316.40, 16,947.24 and 5,755.12

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Solution

The fourth proportional to 11,316.40, 16,947.24 and 5,755.12 is: 8,618.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.40 : 16,947.24 = 5,755.12 : x
  2. Step 2: Convert to fraction form
    11,316.40/16,947.24 = 5,755.12/x
  3. Step 3: Cross multiply
    11,316.40x = 16,947.24 × 5,755.12
  4. Step 4: Simplify right side
    11,316.40x = 97,533,399.87
  5. Step 5: Solve for x
    x = 97,533,399.87/11,316.40
  6. Step 6: Final answer
    x = 8,618.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.