Home / 6,915.16-9,542.44-4,082.40

Finding the Fourth Proportional to 6,915.16, 9,542.44 and 4,082.40

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Solution

The fourth proportional to 6,915.16, 9,542.44 and 4,082.40 is: 5,633.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.16 : 9,542.44 = 4,082.40 : x
  2. Step 2: Convert to fraction form
    6,915.16/9,542.44 = 4,082.40/x
  3. Step 3: Cross multiply
    6,915.16x = 9,542.44 × 4,082.40
  4. Step 4: Simplify right side
    6,915.16x = 38,956,057.06
  5. Step 5: Solve for x
    x = 38,956,057.06/6,915.16
  6. Step 6: Final answer
    x = 5,633.43

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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.