Home / 9,489.64-13,091.88-6,304.48

Finding the Fourth Proportional to 9,489.64, 13,091.88 and 6,304.48

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Solution

The fourth proportional to 9,489.64, 13,091.88 and 6,304.48 is: 8,697.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,489.64 : 13,091.88 = 6,304.48 : x
  2. Step 2: Convert to fraction form
    9,489.64/13,091.88 = 6,304.48/x
  3. Step 3: Cross multiply
    9,489.64x = 13,091.88 × 6,304.48
  4. Step 4: Simplify right side
    9,489.64x = 82,537,495.62
  5. Step 5: Solve for x
    x = 82,537,495.62/9,489.64
  6. Step 6: Final answer
    x = 8,697.64

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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.