Home / 12,207.96-18,319.46-4,811.16

Finding the Fourth Proportional to 12,207.96, 18,319.46 and 4,811.16

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Solution

The fourth proportional to 12,207.96, 18,319.46 and 4,811.16 is: 7,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.96 : 18,319.46 = 4,811.16 : x
  2. Step 2: Convert to fraction form
    12,207.96/18,319.46 = 4,811.16/x
  3. Step 3: Cross multiply
    12,207.96x = 18,319.46 × 4,811.16
  4. Step 4: Simplify right side
    12,207.96x = 88,137,853.17
  5. Step 5: Solve for x
    x = 88,137,853.17/12,207.96
  6. Step 6: Final answer
    x = 7,219.70

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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.