Home / 14,212.05-21,318.09-6,312.72

Finding the Fourth Proportional to 14,212.05, 21,318.09 and 6,312.72

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Solution

The fourth proportional to 14,212.05, 21,318.09 and 6,312.72 is: 9,469.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.05 : 21,318.09 = 6,312.72 : x
  2. Step 2: Convert to fraction form
    14,212.05/21,318.09 = 6,312.72/x
  3. Step 3: Cross multiply
    14,212.05x = 21,318.09 × 6,312.72
  4. Step 4: Simplify right side
    14,212.05x = 134,575,133.10
  5. Step 5: Solve for x
    x = 134,575,133.10/14,212.05
  6. Step 6: Final answer
    x = 9,469.09

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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.