Home / 11,810.64-17,718.24-4,420.32

Finding the Fourth Proportional to 11,810.64, 17,718.24 and 4,420.32

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Solution

The fourth proportional to 11,810.64, 17,718.24 and 4,420.32 is: 6,631.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,810.64 : 17,718.24 = 4,420.32 : x
  2. Step 2: Convert to fraction form
    11,810.64/17,718.24 = 4,420.32/x
  3. Step 3: Cross multiply
    11,810.64x = 17,718.24 × 4,420.32
  4. Step 4: Simplify right side
    11,810.64x = 78,320,290.64
  5. Step 5: Solve for x
    x = 78,320,290.64/11,810.64
  6. Step 6: Final answer
    x = 6,631.33

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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.