Home / 10,378.80-14,322.36-5,902.44

Finding the Fourth Proportional to 10,378.80, 14,322.36 and 5,902.44

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Solution

The fourth proportional to 10,378.80, 14,322.36 and 5,902.44 is: 8,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.80 : 14,322.36 = 5,902.44 : x
  2. Step 2: Convert to fraction form
    10,378.80/14,322.36 = 5,902.44/x
  3. Step 3: Cross multiply
    10,378.80x = 14,322.36 × 5,902.44
  4. Step 4: Simplify right side
    10,378.80x = 84,536,870.56
  5. Step 5: Solve for x
    x = 84,536,870.56/10,378.80
  6. Step 6: Final answer
    x = 8,145.15

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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.