Home / 8,298.40-12,447.60-3,924.40

Finding the Fourth Proportional to 8,298.40, 12,447.60 and 3,924.40

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Solution

The fourth proportional to 8,298.40, 12,447.60 and 3,924.40 is: 5,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,298.40 : 12,447.60 = 3,924.40 : x
  2. Step 2: Convert to fraction form
    8,298.40/12,447.60 = 3,924.40/x
  3. Step 3: Cross multiply
    8,298.40x = 12,447.60 × 3,924.40
  4. Step 4: Simplify right side
    8,298.40x = 48,849,361.44
  5. Step 5: Solve for x
    x = 48,849,361.44/8,298.40
  6. Step 6: Final answer
    x = 5,886.60

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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.