Home / 12,236.89-18,354.59-4,339.79

Finding the Fourth Proportional to 12,236.89, 18,354.59 and 4,339.79

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Solution

The fourth proportional to 12,236.89, 18,354.59 and 4,339.79 is: 6,509.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.89 : 18,354.59 = 4,339.79 : x
  2. Step 2: Convert to fraction form
    12,236.89/18,354.59 = 4,339.79/x
  3. Step 3: Cross multiply
    12,236.89x = 18,354.59 × 4,339.79
  4. Step 4: Simplify right side
    12,236.89x = 79,655,066.14
  5. Step 5: Solve for x
    x = 79,655,066.14/12,236.89
  6. Step 6: Final answer
    x = 6,509.42

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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.