Home / 10,303.58-15,455.42-4,378.94

Finding the Fourth Proportional to 10,303.58, 15,455.42 and 4,378.94

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Solution

The fourth proportional to 10,303.58, 15,455.42 and 4,378.94 is: 6,568.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,303.58 : 15,455.42 = 4,378.94 : x
  2. Step 2: Convert to fraction form
    10,303.58/15,455.42 = 4,378.94/x
  3. Step 3: Cross multiply
    10,303.58x = 15,455.42 × 4,378.94
  4. Step 4: Simplify right side
    10,303.58x = 67,678,257.68
  5. Step 5: Solve for x
    x = 67,678,257.68/10,303.58
  6. Step 6: Final answer
    x = 6,568.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.