Home / 8,126.60-12,191.61-4,618.25

Finding the Fourth Proportional to 8,126.60, 12,191.61 and 4,618.25

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Solution

The fourth proportional to 8,126.60, 12,191.61 and 4,618.25 is: 6,928.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.60 : 12,191.61 = 4,618.25 : x
  2. Step 2: Convert to fraction form
    8,126.60/12,191.61 = 4,618.25/x
  3. Step 3: Cross multiply
    8,126.60x = 12,191.61 × 4,618.25
  4. Step 4: Simplify right side
    8,126.60x = 56,303,956.39
  5. Step 5: Solve for x
    x = 56,303,956.39/8,126.60
  6. Step 6: Final answer
    x = 6,928.35

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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.