Home / 12,225.79-18,327.41-4,322.55

Finding the Fourth Proportional to 12,225.79, 18,327.41 and 4,322.55

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Solution

The fourth proportional to 12,225.79, 18,327.41 and 4,322.55 is: 6,479.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.79 : 18,327.41 = 4,322.55 : x
  2. Step 2: Convert to fraction form
    12,225.79/18,327.41 = 4,322.55/x
  3. Step 3: Cross multiply
    12,225.79x = 18,327.41 × 4,322.55
  4. Step 4: Simplify right side
    12,225.79x = 79,221,146.10
  5. Step 5: Solve for x
    x = 79,221,146.10/12,225.79
  6. Step 6: Final answer
    x = 6,479.84

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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.