Home / 12,225.60-18,335.21-4,327.34

Finding the Fourth Proportional to 12,225.60, 18,335.21 and 4,327.34

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Solution

The fourth proportional to 12,225.60, 18,335.21 and 4,327.34 is: 6,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.60 : 18,335.21 = 4,327.34 : x
  2. Step 2: Convert to fraction form
    12,225.60/18,335.21 = 4,327.34/x
  3. Step 3: Cross multiply
    12,225.60x = 18,335.21 × 4,327.34
  4. Step 4: Simplify right side
    12,225.60x = 79,342,574.33
  5. Step 5: Solve for x
    x = 79,342,574.33/12,225.60
  6. Step 6: Final answer
    x = 6,489.87

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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.