Home / 14,211.36-21,318.12-7,290.72

Finding the Fourth Proportional to 14,211.36, 21,318.12 and 7,290.72

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Solution

The fourth proportional to 14,211.36, 21,318.12 and 7,290.72 is: 10,936.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.36 : 21,318.12 = 7,290.72 : x
  2. Step 2: Convert to fraction form
    14,211.36/21,318.12 = 7,290.72/x
  3. Step 3: Cross multiply
    14,211.36x = 21,318.12 × 7,290.72
  4. Step 4: Simplify right side
    14,211.36x = 155,424,443.85
  5. Step 5: Solve for x
    x = 155,424,443.85/14,211.36
  6. Step 6: Final answer
    x = 10,936.63

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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.