Home / 14,006.81-21,013.25-4,146.78

Finding the Fourth Proportional to 14,006.81, 21,013.25 and 4,146.78

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Solution

The fourth proportional to 14,006.81, 21,013.25 and 4,146.78 is: 6,221.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.81 : 21,013.25 = 4,146.78 : x
  2. Step 2: Convert to fraction form
    14,006.81/21,013.25 = 4,146.78/x
  3. Step 3: Cross multiply
    14,006.81x = 21,013.25 × 4,146.78
  4. Step 4: Simplify right side
    14,006.81x = 87,137,304.10
  5. Step 5: Solve for x
    x = 87,137,304.10/14,006.81
  6. Step 6: Final answer
    x = 6,221.07

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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.