Home / 12,007.81-18,011.33-5,433.99

Finding the Fourth Proportional to 12,007.81, 18,011.33 and 5,433.99

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Solution

The fourth proportional to 12,007.81, 18,011.33 and 5,433.99 is: 8,150.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.81 : 18,011.33 = 5,433.99 : x
  2. Step 2: Convert to fraction form
    12,007.81/18,011.33 = 5,433.99/x
  3. Step 3: Cross multiply
    12,007.81x = 18,011.33 × 5,433.99
  4. Step 4: Simplify right side
    12,007.81x = 97,873,447.86
  5. Step 5: Solve for x
    x = 97,873,447.86/12,007.81
  6. Step 6: Final answer
    x = 8,150.82

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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.