Home / 10,745.87-16,143.30-9,269.64

Finding the Fourth Proportional to 10,745.87, 16,143.30 and 9,269.64

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Solution

The fourth proportional to 10,745.87, 16,143.30 and 9,269.64 is: 13,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,745.87 : 16,143.30 = 9,269.64 : x
  2. Step 2: Convert to fraction form
    10,745.87/16,143.30 = 9,269.64/x
  3. Step 3: Cross multiply
    10,745.87x = 16,143.30 × 9,269.64
  4. Step 4: Simplify right side
    10,745.87x = 149,642,579.41
  5. Step 5: Solve for x
    x = 149,642,579.41/10,745.87
  6. Step 6: Final answer
    x = 13,925.60

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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.