Home / 6,915.42-9,543.36-3,771.66

Finding the Fourth Proportional to 6,915.42, 9,543.36 and 3,771.66

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Solution

The fourth proportional to 6,915.42, 9,543.36 and 3,771.66 is: 5,204.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.42 : 9,543.36 = 3,771.66 : x
  2. Step 2: Convert to fraction form
    6,915.42/9,543.36 = 3,771.66/x
  3. Step 3: Cross multiply
    6,915.42x = 9,543.36 × 3,771.66
  4. Step 4: Simplify right side
    6,915.42x = 35,994,309.18
  5. Step 5: Solve for x
    x = 35,994,309.18/6,915.42
  6. Step 6: Final answer
    x = 5,204.93

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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.