Home / 12,309.28-18,465.54-4,523.56

Finding the Fourth Proportional to 12,309.28, 18,465.54 and 4,523.56

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Solution

The fourth proportional to 12,309.28, 18,465.54 and 4,523.56 is: 6,785.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309.28 : 18,465.54 = 4,523.56 : x
  2. Step 2: Convert to fraction form
    12,309.28/18,465.54 = 4,523.56/x
  3. Step 3: Cross multiply
    12,309.28x = 18,465.54 × 4,523.56
  4. Step 4: Simplify right side
    12,309.28x = 83,529,978.12
  5. Step 5: Solve for x
    x = 83,529,978.12/12,309.28
  6. Step 6: Final answer
    x = 6,785.94

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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.