Home / 9,908.40-13,682.84-6,377.76

Finding the Fourth Proportional to 9,908.40, 13,682.84 and 6,377.76

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Solution

The fourth proportional to 9,908.40, 13,682.84 and 6,377.76 is: 8,807.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,908.40 : 13,682.84 = 6,377.76 : x
  2. Step 2: Convert to fraction form
    9,908.40/13,682.84 = 6,377.76/x
  3. Step 3: Cross multiply
    9,908.40x = 13,682.84 × 6,377.76
  4. Step 4: Simplify right side
    9,908.40x = 87,265,869.64
  5. Step 5: Solve for x
    x = 87,265,869.64/9,908.40
  6. Step 6: Final answer
    x = 8,807.26

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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.