Home / 14,007.89-21,014.91-4,147.94

Finding the Fourth Proportional to 14,007.89, 21,014.91 and 4,147.94

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Solution

The fourth proportional to 14,007.89, 21,014.91 and 4,147.94 is: 6,222.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.89 : 21,014.91 = 4,147.94 : x
  2. Step 2: Convert to fraction form
    14,007.89/21,014.91 = 4,147.94/x
  3. Step 3: Cross multiply
    14,007.89x = 21,014.91 × 4,147.94
  4. Step 4: Simplify right side
    14,007.89x = 87,168,480.71
  5. Step 5: Solve for x
    x = 87,168,480.71/14,007.89
  6. Step 6: Final answer
    x = 6,222.81

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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.