Home / 11,429.64-17,130.96-4,405.32

Finding the Fourth Proportional to 11,429.64, 17,130.96 and 4,405.32

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Solution

The fourth proportional to 11,429.64, 17,130.96 and 4,405.32 is: 6,602.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.64 : 17,130.96 = 4,405.32 : x
  2. Step 2: Convert to fraction form
    11,429.64/17,130.96 = 4,405.32/x
  3. Step 3: Cross multiply
    11,429.64x = 17,130.96 × 4,405.32
  4. Step 4: Simplify right side
    11,429.64x = 75,467,360.71
  5. Step 5: Solve for x
    x = 75,467,360.71/11,429.64
  6. Step 6: Final answer
    x = 6,602.78

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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.