Home / 10,378.21-14,322.36-5,902.75

Finding the Fourth Proportional to 10,378.21, 14,322.36 and 5,902.75

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Solution

The fourth proportional to 10,378.21, 14,322.36 and 5,902.75 is: 8,146.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.21 : 14,322.36 = 5,902.75 : x
  2. Step 2: Convert to fraction form
    10,378.21/14,322.36 = 5,902.75/x
  3. Step 3: Cross multiply
    10,378.21x = 14,322.36 × 5,902.75
  4. Step 4: Simplify right side
    10,378.21x = 84,541,310.49
  5. Step 5: Solve for x
    x = 84,541,310.49/10,378.21
  6. Step 6: Final answer
    x = 8,146.04

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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.