Home / 8,425.40-12,638.10-4,531.64

Finding the Fourth Proportional to 8,425.40, 12,638.10 and 4,531.64

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Solution

The fourth proportional to 8,425.40, 12,638.10 and 4,531.64 is: 6,797.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.40 : 12,638.10 = 4,531.64 : x
  2. Step 2: Convert to fraction form
    8,425.40/12,638.10 = 4,531.64/x
  3. Step 3: Cross multiply
    8,425.40x = 12,638.10 × 4,531.64
  4. Step 4: Simplify right side
    8,425.40x = 57,271,319.48
  5. Step 5: Solve for x
    x = 57,271,319.48/8,425.40
  6. Step 6: Final answer
    x = 6,797.46

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Similar ratio
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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.