Home / 14,148.38-21,222.86-4,287.62

Finding the Fourth Proportional to 14,148.38, 21,222.86 and 4,287.62

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Solution

The fourth proportional to 14,148.38, 21,222.86 and 4,287.62 is: 6,431.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.38 : 21,222.86 = 4,287.62 : x
  2. Step 2: Convert to fraction form
    14,148.38/21,222.86 = 4,287.62/x
  3. Step 3: Cross multiply
    14,148.38x = 21,222.86 × 4,287.62
  4. Step 4: Simplify right side
    14,148.38x = 90,995,590.61
  5. Step 5: Solve for x
    x = 90,995,590.61/14,148.38
  6. Step 6: Final answer
    x = 6,431.52

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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.