Home / 12,474.40-18,711.60-6,629.44

Finding the Fourth Proportional to 12,474.40, 18,711.60 and 6,629.44

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Solution

The fourth proportional to 12,474.40, 18,711.60 and 6,629.44 is: 9,944.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.40 : 18,711.60 = 6,629.44 : x
  2. Step 2: Convert to fraction form
    12,474.40/18,711.60 = 6,629.44/x
  3. Step 3: Cross multiply
    12,474.40x = 18,711.60 × 6,629.44
  4. Step 4: Simplify right side
    12,474.40x = 124,047,429.50
  5. Step 5: Solve for x
    x = 124,047,429.50/12,474.40
  6. Step 6: Final answer
    x = 9,944.16

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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.