Home / 10,426.70-15,639.24-4,878.60

Finding the Fourth Proportional to 10,426.70, 15,639.24 and 4,878.60

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Solution

The fourth proportional to 10,426.70, 15,639.24 and 4,878.60 is: 7,317.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,426.70 : 15,639.24 = 4,878.60 : x
  2. Step 2: Convert to fraction form
    10,426.70/15,639.24 = 4,878.60/x
  3. Step 3: Cross multiply
    10,426.70x = 15,639.24 × 4,878.60
  4. Step 4: Simplify right side
    10,426.70x = 76,297,596.26
  5. Step 5: Solve for x
    x = 76,297,596.26/10,426.70
  6. Step 6: Final answer
    x = 7,317.52

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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.