Home / 6,531.12-9,009.16-4,170.60

Finding the Fourth Proportional to 6,531.12, 9,009.16 and 4,170.60

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Solution

The fourth proportional to 6,531.12, 9,009.16 and 4,170.60 is: 5,753.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.12 : 9,009.16 = 4,170.60 : x
  2. Step 2: Convert to fraction form
    6,531.12/9,009.16 = 4,170.60/x
  3. Step 3: Cross multiply
    6,531.12x = 9,009.16 × 4,170.60
  4. Step 4: Simplify right side
    6,531.12x = 37,573,602.70
  5. Step 5: Solve for x
    x = 37,573,602.70/6,531.12
  6. Step 6: Final answer
    x = 5,753.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.