Home / 10,429.14-15,643.28-3,855.18

Finding the Fourth Proportional to 10,429.14, 15,643.28 and 3,855.18

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Solution

The fourth proportional to 10,429.14, 15,643.28 and 3,855.18 is: 5,782.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,429.14 : 15,643.28 = 3,855.18 : x
  2. Step 2: Convert to fraction form
    10,429.14/15,643.28 = 3,855.18/x
  3. Step 3: Cross multiply
    10,429.14x = 15,643.28 × 3,855.18
  4. Step 4: Simplify right side
    10,429.14x = 60,307,660.19
  5. Step 5: Solve for x
    x = 60,307,660.19/10,429.14
  6. Step 6: Final answer
    x = 5,782.61

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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.