Home / 14,369.16-21,553.76-3,980.91

Finding the Fourth Proportional to 14,369.16, 21,553.76 and 3,980.91

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Solution

The fourth proportional to 14,369.16, 21,553.76 and 3,980.91 is: 5,971.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,369.16 : 21,553.76 = 3,980.91 : x
  2. Step 2: Convert to fraction form
    14,369.16/21,553.76 = 3,980.91/x
  3. Step 3: Cross multiply
    14,369.16x = 21,553.76 × 3,980.91
  4. Step 4: Simplify right side
    14,369.16x = 85,803,578.72
  5. Step 5: Solve for x
    x = 85,803,578.72/14,369.16
  6. Step 6: Final answer
    x = 5,971.37

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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.