Home / 9,372.60-12,923.52-6,390.18

Finding the Fourth Proportional to 9,372.60, 12,923.52 and 6,390.18

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Solution

The fourth proportional to 9,372.60, 12,923.52 and 6,390.18 is: 8,811.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.60 : 12,923.52 = 6,390.18 : x
  2. Step 2: Convert to fraction form
    9,372.60/12,923.52 = 6,390.18/x
  3. Step 3: Cross multiply
    9,372.60x = 12,923.52 × 6,390.18
  4. Step 4: Simplify right side
    9,372.60x = 82,583,619.03
  5. Step 5: Solve for x
    x = 82,583,619.03/9,372.60
  6. Step 6: Final answer
    x = 8,811.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.