Home / 14,239.53-21,359.64-4,378.89

Finding the Fourth Proportional to 14,239.53, 21,359.64 and 4,378.89

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Solution

The fourth proportional to 14,239.53, 21,359.64 and 4,378.89 is: 6,568.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.53 : 21,359.64 = 4,378.89 : x
  2. Step 2: Convert to fraction form
    14,239.53/21,359.64 = 4,378.89/x
  3. Step 3: Cross multiply
    14,239.53x = 21,359.64 × 4,378.89
  4. Step 4: Simplify right side
    14,239.53x = 93,531,514.00
  5. Step 5: Solve for x
    x = 93,531,514.00/14,239.53
  6. Step 6: Final answer
    x = 6,568.44

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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.