Home / 9,357.18-12,915.08-6,171.05

Finding the Fourth Proportional to 9,357.18, 12,915.08 and 6,171.05

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Solution

The fourth proportional to 9,357.18, 12,915.08 and 6,171.05 is: 8,517.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,357.18 : 12,915.08 = 6,171.05 : x
  2. Step 2: Convert to fraction form
    9,357.18/12,915.08 = 6,171.05/x
  3. Step 3: Cross multiply
    9,357.18x = 12,915.08 × 6,171.05
  4. Step 4: Simplify right side
    9,357.18x = 79,699,636.72
  5. Step 5: Solve for x
    x = 79,699,636.72/9,357.18
  6. Step 6: Final answer
    x = 8,517.48

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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.