Home / 13,282.38-18,334.65-8,807.64

Finding the Fourth Proportional to 13,282.38, 18,334.65 and 8,807.64

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Solution

The fourth proportional to 13,282.38, 18,334.65 and 8,807.64 is: 12,157.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.38 : 18,334.65 = 8,807.64 : x
  2. Step 2: Convert to fraction form
    13,282.38/18,334.65 = 8,807.64/x
  3. Step 3: Cross multiply
    13,282.38x = 18,334.65 × 8,807.64
  4. Step 4: Simplify right side
    13,282.38x = 161,484,961.00
  5. Step 5: Solve for x
    x = 161,484,961.00/13,282.38
  6. Step 6: Final answer
    x = 12,157.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.