Home / 9,915.40-13,682.10-5,935.96

Finding the Fourth Proportional to 9,915.40, 13,682.10 and 5,935.96

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Solution

The fourth proportional to 9,915.40, 13,682.10 and 5,935.96 is: 8,190.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,915.40 : 13,682.10 = 5,935.96 : x
  2. Step 2: Convert to fraction form
    9,915.40/13,682.10 = 5,935.96/x
  3. Step 3: Cross multiply
    9,915.40x = 13,682.10 × 5,935.96
  4. Step 4: Simplify right side
    9,915.40x = 81,216,398.32
  5. Step 5: Solve for x
    x = 81,216,398.32/9,915.40
  6. Step 6: Final answer
    x = 8,190.94

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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.