Home / 10,460.64-15,680.88-3,531.36

Finding the Fourth Proportional to 10,460.64, 15,680.88 and 3,531.36

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Solution

The fourth proportional to 10,460.64, 15,680.88 and 3,531.36 is: 5,293.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,460.64 : 15,680.88 = 3,531.36 : x
  2. Step 2: Convert to fraction form
    10,460.64/15,680.88 = 3,531.36/x
  3. Step 3: Cross multiply
    10,460.64x = 15,680.88 × 3,531.36
  4. Step 4: Simplify right side
    10,460.64x = 55,374,832.40
  5. Step 5: Solve for x
    x = 55,374,832.40/10,460.64
  6. Step 6: Final answer
    x = 5,293.64

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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.