Home / 12,339.79-18,505.07-4,440.16

Finding the Fourth Proportional to 12,339.79, 18,505.07 and 4,440.16

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Solution

The fourth proportional to 12,339.79, 18,505.07 and 4,440.16 is: 6,658.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.79 : 18,505.07 = 4,440.16 : x
  2. Step 2: Convert to fraction form
    12,339.79/18,505.07 = 4,440.16/x
  3. Step 3: Cross multiply
    12,339.79x = 18,505.07 × 4,440.16
  4. Step 4: Simplify right side
    12,339.79x = 82,165,403.15
  5. Step 5: Solve for x
    x = 82,165,403.15/12,339.79
  6. Step 6: Final answer
    x = 6,658.58

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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.