Home / 12,303.60-18,464.04-5,382.96

Finding the Fourth Proportional to 12,303.60, 18,464.04 and 5,382.96

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Solution

The fourth proportional to 12,303.60, 18,464.04 and 5,382.96 is: 8,078.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.60 : 18,464.04 = 5,382.96 : x
  2. Step 2: Convert to fraction form
    12,303.60/18,464.04 = 5,382.96/x
  3. Step 3: Cross multiply
    12,303.60x = 18,464.04 × 5,382.96
  4. Step 4: Simplify right side
    12,303.60x = 99,391,188.76
  5. Step 5: Solve for x
    x = 99,391,188.76/12,303.60
  6. Step 6: Final answer
    x = 8,078.22

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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.