Home / 9,204.72-12,702.60-5,478

Finding the Fourth Proportional to 9,204.72, 12,702.60 and 5,478

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Solution

The fourth proportional to 9,204.72, 12,702.60 and 5,478 is: 7,559.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,204.72 : 12,702.60 = 5,478 : x
  2. Step 2: Convert to fraction form
    9,204.72/12,702.60 = 5,478/x
  3. Step 3: Cross multiply
    9,204.72x = 12,702.60 × 5,478
  4. Step 4: Simplify right side
    9,204.72x = 69,584,842.80
  5. Step 5: Solve for x
    x = 69,584,842.80/9,204.72
  6. Step 6: Final answer
    x = 7,559.69

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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.