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Finding the Fourth Proportional to 8,346.68, 12,509.58 and 3,955.40

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Solution

The fourth proportional to 8,346.68, 12,509.58 and 3,955.40 is: 5,928.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,346.68 : 12,509.58 = 3,955.40 : x
  2. Step 2: Convert to fraction form
    8,346.68/12,509.58 = 3,955.40/x
  3. Step 3: Cross multiply
    8,346.68x = 12,509.58 × 3,955.40
  4. Step 4: Simplify right side
    8,346.68x = 49,480,392.73
  5. Step 5: Solve for x
    x = 49,480,392.73/8,346.68
  6. Step 6: Final answer
    x = 5,928.15

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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.