Home / 11,640.88-17,424.60-7,475.32

Finding the Fourth Proportional to 11,640.88, 17,424.60 and 7,475.32

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Solution

The fourth proportional to 11,640.88, 17,424.60 and 7,475.32 is: 11,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.88 : 17,424.60 = 7,475.32 : x
  2. Step 2: Convert to fraction form
    11,640.88/17,424.60 = 7,475.32/x
  3. Step 3: Cross multiply
    11,640.88x = 17,424.60 × 7,475.32
  4. Step 4: Simplify right side
    11,640.88x = 130,254,460.87
  5. Step 5: Solve for x
    x = 130,254,460.87/11,640.88
  6. Step 6: Final answer
    x = 11,189.40

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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.